1 /* Compiler driver program that can handle many languages.
2 Copyright (C) 1987, 89, 92-97, 1998 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA.
21 This paragraph is here to try to keep Sun CC from dying.
22 The number of chars here seems crucial!!!! */
24 /* This program is the user interface to the C compiler and possibly to
25 other compilers. It is used because compilation is a complicated procedure
26 which involves running several programs and passing temporary files between
27 them, forwarding the users switches to those programs selectively,
28 and deleting the temporary files at the end.
30 CC recognizes how to compile each input file by suffixes in the file names.
31 Once it knows which kind of compilation to perform, the procedure for
32 compilation is specified by a string called a "spec". */
39 #include "gansidecl.h"
43 /* ??? Need to find a GCC header to put these in. */
44 extern int pexecute PROTO ((const char *, char * const *, const char *,
45 const char *, char **, char **, int));
46 extern int pwait PROTO ((int, int *, int));
47 extern char *update_path PROTO((char *, char *));
48 extern void set_std_prefix PROTO((char *, int));
49 /* Flag arguments to pexecute. */
50 #define PEXECUTE_FIRST 1
51 #define PEXECUTE_LAST 2
52 #define PEXECUTE_SEARCH 4
53 #define PEXECUTE_VERBOSE 8
56 #define WIFSIGNALED(S) (((S) & 0xff) != 0 && ((S) & 0xff) != 0x7f)
59 #define WTERMSIG(S) ((S) & 0x7f)
62 #define WIFEXITED(S) (((S) & 0xff) == 0)
65 #define WEXITSTATUS(S) (((S) & 0xff00) >> 8)
69 #define exit __posix_exit
76 /* Test if something is a normal file. */
78 #define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
81 /* Test if something is a directory. */
83 #define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
86 /* By default there is no special suffix for executables. */
87 #ifdef EXECUTABLE_SUFFIX
88 #define HAVE_EXECUTABLE_SUFFIX
90 #define EXECUTABLE_SUFFIX ""
93 /* By default, the suffix for object files is ".o". */
95 #define HAVE_OBJECT_SUFFIX
97 #define OBJECT_SUFFIX ".o"
100 /* By default, colon separates directories in a path. */
101 #ifndef PATH_SEPARATOR
102 #define PATH_SEPARATOR ':'
105 #ifndef DIR_SEPARATOR
106 #define DIR_SEPARATOR '/'
109 static char dir_separator_str[] = {DIR_SEPARATOR, 0};
111 #define obstack_chunk_alloc xmalloc
112 #define obstack_chunk_free free
114 #ifndef GET_ENV_PATH_LIST
115 #define GET_ENV_PATH_LIST(VAR,NAME) do { (VAR) = getenv (NAME); } while (0)
118 extern char *my_strerror PROTO((int));
121 #define kill(p,s) raise(s)
124 /* If a stage of compilation returns an exit status >= 1,
125 compilation of that file ceases. */
127 #define MIN_FATAL_STATUS 1
129 /* Flag saying to print the directories gcc will search through looking for
130 programs, libraries, etc. */
132 static int print_search_dirs;
134 /* Flag saying to print the full filename of this file
135 as found through our usual search mechanism. */
137 static char *print_file_name = NULL;
139 /* As print_file_name, but search for executable file. */
141 static char *print_prog_name = NULL;
143 /* Flag saying to print the relative path we'd use to
144 find libgcc.a given the current compiler flags. */
146 static int print_multi_directory;
148 /* Flag saying to print the list of subdirectories and
149 compiler flags used to select them in a standard form. */
151 static int print_multi_lib;
153 /* Flag saying to print the command line options understood by gcc and its
156 static int print_help_list;
158 /* Flag indicating whether we should print the command and arguments */
160 static int verbose_flag;
162 /* Nonzero means write "temp" files in source directory
163 and use the source file's name in them, and don't delete them. */
165 static int save_temps_flag;
167 /* The compiler version. */
169 static char *compiler_version;
171 /* The target version specified with -V */
173 static char *spec_version = DEFAULT_TARGET_VERSION;
175 /* The target machine specified with -b. */
177 static char *spec_machine = DEFAULT_TARGET_MACHINE;
179 /* Nonzero if cross-compiling.
180 When -b is used, the value comes from the `specs' file. */
183 static char *cross_compile = "1";
185 static char *cross_compile = "0";
188 /* The number of errors that have occurred; the link phase will not be
189 run if this is non-zero. */
190 static int error_count = 0;
192 /* This is the obstack which we use to allocate many strings. */
194 static struct obstack obstack;
196 /* This is the obstack to build an environment variable to pass to
197 collect2 that describes all of the relevant switches of what to
198 pass the compiler in building the list of pointers to constructors
201 static struct obstack collect_obstack;
203 extern char *version_string;
205 /* Forward declaration for prototypes. */
208 static void init_spec PROTO((void));
209 static void read_specs PROTO((char *, int));
210 static void set_spec PROTO((char *, char *));
211 static struct compiler *lookup_compiler PROTO((char *, size_t, char *));
212 static char *build_search_list PROTO((struct path_prefix *, char *, int));
213 static void putenv_from_prefixes PROTO((struct path_prefix *, char *));
214 static char *find_a_file PROTO((struct path_prefix *, char *, int));
215 static void add_prefix PROTO((struct path_prefix *, char *, char *,
217 static char *skip_whitespace PROTO((char *));
218 static void record_temp_file PROTO((char *, int, int));
219 static void delete_if_ordinary PROTO((char *));
220 static void delete_temp_files PROTO((void));
221 static void delete_failure_queue PROTO((void));
222 static void clear_failure_queue PROTO((void));
223 static int check_live_switch PROTO((int, int));
224 static char *handle_braces PROTO((char *));
225 static char *save_string PROTO((char *, int));
226 static char *concat PVPROTO((char *, ...));
227 extern int do_spec PROTO((char *));
228 static int do_spec_1 PROTO((char *, int, char *));
229 static char *find_file PROTO((char *));
230 static int is_directory PROTO((char *, char *, int));
231 static void validate_switches PROTO((char *));
232 static void validate_all_switches PROTO((void));
233 static void give_switch PROTO((int, int, int));
234 static int used_arg PROTO((char *, int));
235 static int default_arg PROTO((char *, int));
236 static void set_multilib_dir PROTO((void));
237 static void print_multilib_info PROTO((void));
238 static void pfatal_with_name PROTO((char *));
239 static void perror_with_name PROTO((char *));
240 static void pfatal_pexecute PROTO((char *, char *));
241 static void fatal PVPROTO((char *, ...));
242 static void error PVPROTO((char *, ...));
243 static void display_help PROTO((void));
249 #ifdef LANG_SPECIFIC_DRIVER
250 /* Called before processing to change/add/remove arguments. */
251 extern void lang_specific_driver PROTO ((void (*) PVPROTO((char *, ...)), int *, char ***, int *));
253 /* Called before linking. Returns 0 on success and -1 on failure. */
254 extern int lang_specific_pre_link ();
256 /* Number of extra output files that lang_specific_pre_link may generate. */
257 extern int lang_specific_extra_outfiles;
260 /* Specs are strings containing lines, each of which (if not blank)
261 is made up of a program name, and arguments separated by spaces.
262 The program name must be exact and start from root, since no path
263 is searched and it is unreliable to depend on the current working directory.
264 Redirection of input or output is not supported; the subprograms must
265 accept filenames saying what files to read and write.
267 In addition, the specs can contain %-sequences to substitute variable text
268 or for conditional text. Here is a table of all defined %-sequences.
269 Note that spaces are not generated automatically around the results of
270 expanding these sequences; therefore, you can concatenate them together
271 or with constant text in a single argument.
273 %% substitute one % into the program name or argument.
274 %i substitute the name of the input file being processed.
275 %b substitute the basename of the input file being processed.
276 This is the substring up to (and not including) the last period
277 and not including the directory.
279 substitute a file name that has suffix SUFFIX and is chosen
280 once per compilation, and mark the argument a la %d. To reduce
281 exposure to denial-of-service attacks, the file name is now
282 chosen in a way that is hard to predict even when previously
283 chosen file names are known. For example, `%g.s ... %g.o ... %g.s'
284 might turn into `ccUVUUAU.s ccXYAXZ12.o ccUVUUAU.s'. SUFFIX matches
285 the regexp "[.A-Za-z]*" or the special string "%O", which is
286 treated exactly as if %O had been pre-processed. Previously, %g
287 was simply substituted with a file name chosen once per compilation,
288 without regard to any appended suffix (which was therefore treated
289 just like ordinary text), making such attacks more likely to succeed.
291 like %g, but generates a new temporary file name even if %uSUFFIX
294 substitutes the last file name generated with %uSUFFIX, generating a
295 new one if there is no such last file name. In the absence of any
296 %uSUFFIX, this is just like %gSUFFIX, except they don't share
297 the same suffix "space", so `%g.s ... %U.s ... %g.s ... %U.s'
298 would involve the generation of two distinct file names, one
299 for each `%g.s' and another for each `%U.s'. Previously, %U was
300 simply substituted with a file name chosen for the previous %u,
301 without regard to any appended suffix.
302 %d marks the argument containing or following the %d as a
303 temporary file name, so that that file will be deleted if CC exits
304 successfully. Unlike %g, this contributes no text to the argument.
305 %w marks the argument containing or following the %w as the
306 "output file" of this compilation. This puts the argument
307 into the sequence of arguments that %o will substitute later.
309 like %{...} but mark last argument supplied within
310 as a file to be deleted on failure.
311 %o substitutes the names of all the output files, with spaces
312 automatically placed around them. You should write spaces
313 around the %o as well or the results are undefined.
314 %o is for use in the specs for running the linker.
315 Input files whose names have no recognized suffix are not compiled
316 at all, but they are included among the output files, so they will
318 %O substitutes the suffix for object files. Note that this is
319 handled specially when it immediately follows %g, %u, or %U,
320 because of the need for those to form complete file names. The
321 handling is such that %O is treated exactly as if it had already
322 been substituted, except that %g, %u, and %U do not currently
323 support additional SUFFIX characters following %O as they would
324 following, for example, `.o'.
325 %p substitutes the standard macro predefinitions for the
326 current target machine. Use this when running cpp.
327 %P like %p, but puts `__' before and after the name of each macro.
328 (Except macros that already have __.)
330 %I Substitute a -iprefix option made from GCC_EXEC_PREFIX.
331 %s current argument is the name of a library or startup file of some sort.
332 Search for that file in a standard list of directories
333 and substitute the full name found.
334 %eSTR Print STR as an error message. STR is terminated by a newline.
335 Use this when inconsistent options are detected.
336 %x{OPTION} Accumulate an option for %X.
337 %X Output the accumulated linker options specified by compilations.
338 %Y Output the accumulated assembler options specified by compilations.
339 %Z Output the accumulated preprocessor options specified by compilations.
340 %v1 Substitute the major version number of GCC.
341 (For version 2.5.n, this is 2.)
342 %v2 Substitute the minor version number of GCC.
343 (For version 2.5.n, this is 5.)
344 %a process ASM_SPEC as a spec.
345 This allows config.h to specify part of the spec for running as.
346 %A process ASM_FINAL_SPEC as a spec. A capital A is actually
347 used here. This can be used to run a post-processor after the
348 assembler has done its job.
349 %D Dump out a -L option for each directory in startfile_prefixes.
350 If multilib_dir is set, extra entries are generated with it affixed.
351 %l process LINK_SPEC as a spec.
352 %L process LIB_SPEC as a spec.
353 %G process LIBGCC_SPEC as a spec.
354 %S process STARTFILE_SPEC as a spec. A capital S is actually used here.
355 %E process ENDFILE_SPEC as a spec. A capital E is actually used here.
356 %c process SIGNED_CHAR_SPEC as a spec.
357 %C process CPP_SPEC as a spec. A capital C is actually used here.
358 %1 process CC1_SPEC as a spec.
359 %2 process CC1PLUS_SPEC as a spec.
360 %| output "-" if the input for the current command is coming from a pipe.
361 %* substitute the variable part of a matched option. (See below.)
362 Note that each comma in the substituted string is replaced by
364 %{S} substitutes the -S switch, if that switch was given to CC.
365 If that switch was not specified, this substitutes nothing.
366 Here S is a metasyntactic variable.
367 %{S*} substitutes all the switches specified to CC whose names start
368 with -S. This is used for -o, -D, -I, etc; switches that take
369 arguments. CC considers `-o foo' as being one switch whose
370 name starts with `o'. %{o*} would substitute this text,
371 including the space; thus, two arguments would be generated.
372 %{^S*} likewise, but don't put a blank between a switch and any args.
373 %{S*:X} substitutes X if one or more switches whose names start with -S are
374 specified to CC. Note that the tail part of the -S option
375 (i.e. the part matched by the `*') will be substituted for each
376 occurrence of %* within X.
377 %{S:X} substitutes X, but only if the -S switch was given to CC.
378 %{!S:X} substitutes X, but only if the -S switch was NOT given to CC.
379 %{|S:X} like %{S:X}, but if no S switch, substitute `-'.
380 %{|!S:X} like %{!S:X}, but if there is an S switch, substitute `-'.
381 %{.S:X} substitutes X, but only if processing a file with suffix S.
382 %{!.S:X} substitutes X, but only if NOT processing a file with suffix S.
383 %{S|P:X} substitutes X if either -S or -P was given to CC. This may be
384 combined with ! and . as above binding stronger than the OR.
385 %(Spec) processes a specification defined in a specs file as *Spec:
386 %[Spec] as above, but put __ around -D arguments
388 The conditional text X in a %{S:X} or %{!S:X} construct may contain
389 other nested % constructs or spaces, or even newlines. They are
390 processed as usual, as described above.
392 The -O, -f, -m, and -W switches are handled specifically in these
393 constructs. If another value of -O or the negated form of a -f, -m, or
394 -W switch is found later in the command line, the earlier switch
395 value is ignored, except with {S*} where S is just one letter; this
396 passes all matching options.
398 The character | at the beginning of the predicate text is used to indicate
399 that a command should be piped to the following command, but only if -pipe
402 Note that it is built into CC which switches take arguments and which
403 do not. You might think it would be useful to generalize this to
404 allow each compiler's spec to say which switches take arguments. But
405 this cannot be done in a consistent fashion. CC cannot even decide
406 which input files have been specified without knowing which switches
407 take arguments, and it must know which input files to compile in order
408 to tell which compilers to run.
410 CC also knows implicitly that arguments starting in `-l' are to be
411 treated as compiler output files, and passed to the linker in their
412 proper position among the other output files. */
414 /* Define the macros used for specs %a, %l, %L, %S, %c, %C, %1. */
416 /* config.h can define ASM_SPEC to provide extra args to the assembler
417 or extra switch-translations. */
422 /* config.h can define ASM_FINAL_SPEC to run a post processor after
423 the assembler has run. */
424 #ifndef ASM_FINAL_SPEC
425 #define ASM_FINAL_SPEC ""
428 /* config.h can define CPP_SPEC to provide extra args to the C preprocessor
429 or extra switch-translations. */
434 /* config.h can define CC1_SPEC to provide extra args to cc1 and cc1plus
435 or extra switch-translations. */
440 /* config.h can define CC1PLUS_SPEC to provide extra args to cc1plus
441 or extra switch-translations. */
443 #define CC1PLUS_SPEC ""
446 /* config.h can define LINK_SPEC to provide extra args to the linker
447 or extra switch-translations. */
452 /* config.h can define LIB_SPEC to override the default libraries. */
454 #define LIB_SPEC "%{!shared:%{g*:-lg} %{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p}}"
457 /* config.h can define LIBGCC_SPEC to override how and when libgcc.a is
460 #if defined(LINK_LIBGCC_SPECIAL) || defined(LINK_LIBGCC_SPECIAL_1)
461 /* Have gcc do the search for libgcc.a. */
462 #define LIBGCC_SPEC "libgcc.a%s"
464 #define LIBGCC_SPEC "-lgcc"
468 /* config.h can define STARTFILE_SPEC to override the default crt0 files. */
469 #ifndef STARTFILE_SPEC
470 #define STARTFILE_SPEC \
471 "%{!shared:%{pg:gcrt0%O%s}%{!pg:%{p:mcrt0%O%s}%{!p:crt0%O%s}}}"
474 /* config.h can define SWITCHES_NEED_SPACES to control which options
475 require spaces between the option and the argument. */
476 #ifndef SWITCHES_NEED_SPACES
477 #define SWITCHES_NEED_SPACES ""
480 /* config.h can define ENDFILE_SPEC to override the default crtn files. */
482 #define ENDFILE_SPEC ""
485 /* This spec is used for telling cpp whether char is signed or not. */
486 #ifndef SIGNED_CHAR_SPEC
487 /* Use #if rather than ?:
488 because MIPS C compiler rejects like ?: in initializers. */
489 #if DEFAULT_SIGNED_CHAR
490 #define SIGNED_CHAR_SPEC "%{funsigned-char:-D__CHAR_UNSIGNED__}"
492 #define SIGNED_CHAR_SPEC "%{!fsigned-char:-D__CHAR_UNSIGNED__}"
497 #define LINKER_NAME "collect2"
500 static char *cpp_spec = CPP_SPEC;
501 static char *cpp_predefines = CPP_PREDEFINES;
502 static char *cc1_spec = CC1_SPEC;
503 static char *cc1plus_spec = CC1PLUS_SPEC;
504 static char *signed_char_spec = SIGNED_CHAR_SPEC;
505 static char *asm_spec = ASM_SPEC;
506 static char *asm_final_spec = ASM_FINAL_SPEC;
507 static char *link_spec = LINK_SPEC;
508 static char *lib_spec = LIB_SPEC;
509 static char *libgcc_spec = LIBGCC_SPEC;
510 static char *endfile_spec = ENDFILE_SPEC;
511 static char *startfile_spec = STARTFILE_SPEC;
512 static char *switches_need_spaces = SWITCHES_NEED_SPACES;
513 static char *linker_name_spec = LINKER_NAME;
515 /* Some compilers have limits on line lengths, and the multilib_select
516 and/or multilib_matches strings can be very long, so we build them at
518 static struct obstack multilib_obstack;
519 static char *multilib_select;
520 static char *multilib_matches;
521 static char *multilib_defaults;
522 #include "multilib.h"
524 /* Check whether a particular argument is a default argument. */
526 #ifndef MULTILIB_DEFAULTS
527 #define MULTILIB_DEFAULTS { "" }
530 static char *multilib_defaults_raw[] = MULTILIB_DEFAULTS;
533 struct user_specs *next;
537 static struct user_specs *user_specs_head, *user_specs_tail;
539 /* This defines which switch letters take arguments. */
541 #define DEFAULT_SWITCH_TAKES_ARG(CHAR) \
542 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
543 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
544 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
545 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
546 || (CHAR) == 'B' || (CHAR) == 'b')
548 #ifndef SWITCH_TAKES_ARG
549 #define SWITCH_TAKES_ARG(CHAR) DEFAULT_SWITCH_TAKES_ARG(CHAR)
552 /* This defines which multi-letter switches take arguments. */
554 #define DEFAULT_WORD_SWITCH_TAKES_ARG(STR) \
555 (!strcmp (STR, "Tdata") || !strcmp (STR, "Ttext") \
556 || !strcmp (STR, "Tbss") || !strcmp (STR, "include") \
557 || !strcmp (STR, "imacros") || !strcmp (STR, "aux-info") \
558 || !strcmp (STR, "idirafter") || !strcmp (STR, "iprefix") \
559 || !strcmp (STR, "iwithprefix") || !strcmp (STR, "iwithprefixbefore") \
560 || !strcmp (STR, "isystem") || !strcmp (STR, "specs"))
562 #ifndef WORD_SWITCH_TAKES_ARG
563 #define WORD_SWITCH_TAKES_ARG(STR) DEFAULT_WORD_SWITCH_TAKES_ARG (STR)
567 #ifdef HAVE_EXECUTABLE_SUFFIX
568 /* This defines which switches stop a full compilation. */
569 #define DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR) \
570 ((CHAR) == 'c' || (CHAR) == 'S')
572 #ifndef SWITCH_CURTAILS_COMPILATION
573 #define SWITCH_CURTAILS_COMPILATION(CHAR) \
574 DEFAULT_SWITCH_CURTAILS_COMPILATION(CHAR)
578 /* Record the mapping from file suffixes for compilation specs. */
582 char *suffix; /* Use this compiler for input files
583 whose names end in this suffix. */
585 char *spec[4]; /* To use this compiler, concatenate these
586 specs and pass to do_spec. */
589 /* Pointer to a vector of `struct compiler' that gives the spec for
590 compiling a file, based on its suffix.
591 A file that does not end in any of these suffixes will be passed
592 unchanged to the loader and nothing else will be done to it.
594 An entry containing two 0s is used to terminate the vector.
596 If multiple entries match a file, the last matching one is used. */
598 static struct compiler *compilers;
600 /* Number of entries in `compilers', not counting the null terminator. */
602 static int n_compilers;
604 /* The default list of file name suffixes and their compilation specs. */
606 static struct compiler default_compilers[] =
608 /* Add lists of suffixes of known languages here. If those languages
609 were not present when we built the driver, we will hit these copies
610 and be given a more meaningful error than "file not used since
611 linking is not done". */
612 {".cc", {"#C++"}}, {".cxx", {"#C++"}}, {".cpp", {"#C++"}}, {".c++", {"#C++"}},
613 {".C", {"#C++"}}, {".ads", {"#Ada"}}, {".adb", {"#Ada"}}, {".ada", {"#Ada"}},
614 {".f", {"#Fortran"}}, {".for", {"#Fortran"}}, {".F", {"#Fortran"}},
615 {".fpp", {"#Fortran"}},
616 {".p", {"#Pascal"}}, {".pas", {"#Pascal"}},
617 /* Next come the entries for C. */
622 "%{E|M|MM:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
623 %{C:%{!E:%eGNU C does not support -C without using -E}}\
624 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
625 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
626 %{ansi:-trigraphs -D__STRICT_ANSI__}\
627 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
628 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
629 %{traditional} %{ftraditional:-traditional}\
630 %{traditional-cpp:-traditional}\
631 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
632 %i %{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}}\n}\
633 %{!E:%{!M:%{!MM:cc1 %i %1 \
634 -lang-c%{ansi:89} %{nostdinc*} %{A*} %{I*} %I\
635 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
636 %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
637 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
638 %{ansi:-trigraphs -D__STRICT_ANSI__}\
639 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
640 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
641 %{H} %C %{D*} %{U*} %{i*} %Z\
642 %{ftraditional:-traditional}\
643 %{traditional-cpp:-traditional}\
644 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
647 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
648 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
649 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
651 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
652 %{!pipe:%g.s} %A\n }}}}"
654 #else /* ! USE_CPPLIB */
655 "cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
656 %{C:%{!E:%eGNU C does not support -C without using -E}}\
657 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
658 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
659 %{ansi:-trigraphs -D__STRICT_ANSI__}\
660 %{!undef:%{!ansi:%p} %P} %{trigraphs} \
661 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
662 %{traditional} %{ftraditional:-traditional}\
663 %{traditional-cpp:-traditional}\
664 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
665 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
666 "%{!M:%{!MM:%{!E:cc1 %{!pipe:%g.i} %1 \
667 %{!Q:-quiet} -dumpbase %b.c %{d*} %{m*} %{a*}\
668 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
669 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
672 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
673 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
675 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
676 %{!pipe:%g.s} %A\n }}}}"
678 #endif /* ! USE_CPPLIB */
680 {"%{E:cpp -lang-c%{ansi:89} %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
681 %{C:%{!E:%eGNU C does not support -C without using -E}}\
682 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
683 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
684 %{ansi:-trigraphs -D__STRICT_ANSI__}\
685 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
686 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
687 %{traditional} %{ftraditional:-traditional}\
688 %{traditional-cpp:-traditional}\
689 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
691 %{!E:%e-E required when input is from standard input}"}},
692 {".m", {"@objective-c"}},
694 {"cpp -lang-objc %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
695 %{C:%{!E:%eGNU C does not support -C without using -E}}\
696 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
697 -undef -D__OBJC__ -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
698 %{ansi:-trigraphs -D__STRICT_ANSI__}\
699 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
700 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
701 %{traditional} %{ftraditional:-traditional}\
702 %{traditional-cpp:-traditional}\
703 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
704 %i %{!M:%{!MM:%{!E:%{!pipe:%g.i}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
705 "%{!M:%{!MM:%{!E:cc1obj %{!pipe:%g.i} %1 \
706 %{!Q:-quiet} -dumpbase %b.m %{d*} %{m*} %{a*}\
707 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi} \
708 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} \
709 -lang-objc %{gen-decls} \
711 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
712 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
714 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
715 %{!pipe:%g.s} %A\n }}}}"}},
716 {".h", {"@c-header"}},
718 {"%{!E:%eCompilation of header file requested} \
719 cpp %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
720 %{C:%{!E:%eGNU C does not support -C without using -E}}\
721 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG}\
722 -undef -D__GNUC__=%v1 -D__GNUC_MINOR__=%v2\
723 %{ansi:-trigraphs -D__STRICT_ANSI__}\
724 %{!undef:%{!ansi:%p} %P} %{trigraphs}\
725 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
726 %{traditional} %{ftraditional:-traditional}\
727 %{traditional-cpp:-traditional}\
728 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
730 {".i", {"@cpp-output"}},
732 {"%{!M:%{!MM:%{!E:cc1 %i %1 %{!Q:-quiet} %{d*} %{m*} %{a*}\
733 %{g*} %{O*} %{W*} %{w} %{pedantic*} %{ansi}\
734 %{traditional} %{v:-version} %{pg:-p} %{p} %{f*}\
736 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}}\
737 %{S:%W{o*}%{!o*:-o %b.s}}%{!S:-o %{|!pipe:%g.s}} |\n\
739 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
740 %{!pipe:%g.s} %A\n }}}}"}},
741 {".s", {"@assembler"}},
743 {"%{!M:%{!MM:%{!E:%{!S:as %a %Y\
744 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
746 {".S", {"@assembler-with-cpp"}},
747 {"@assembler-with-cpp",
748 {"cpp -lang-asm %{nostdinc*} %{C} %{v} %{A*} %{I*} %{P} %I\
749 %{C:%{!E:%eGNU C does not support -C without using -E}}\
750 %{M} %{MM} %{MD:-MD %b.d} %{MMD:-MMD %b.d} %{MG} %{trigraphs}\
751 -undef -$ %{!undef:%p %P} -D__ASSEMBLER__ \
752 %c %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}}\
753 %{traditional} %{ftraditional:-traditional}\
754 %{traditional-cpp:-traditional}\
755 %{g*} %{W*} %{w} %{pedantic*} %{H} %{d*} %C %{D*} %{U*} %{i*} %Z\
756 %i %{!M:%{!MM:%{!E:%{!pipe:%g.s}}}}%{E:%W{o*}}%{M:%W{o*}}%{MM:%W{o*}} |\n",
757 "%{!M:%{!MM:%{!E:%{!S:as %a %Y\
758 %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O}\
759 %{!pipe:%g.s} %A\n }}}}"}},
761 /* Mark end of table */
765 /* Number of elements in default_compilers, not counting the terminator. */
767 static int n_default_compilers
768 = (sizeof default_compilers / sizeof (struct compiler)) - 1;
770 /* Here is the spec for running the linker, after compiling all files. */
772 /* -u* was put back because both BSD and SysV seem to support it. */
773 /* %{static:} simply prevents an error message if the target machine
774 doesn't handle -static. */
775 /* We want %{T*} after %{L*} and %D so that it can be used to specify linker
776 scripts which exist in user specified directories, or in standard
778 #ifdef LINK_COMMAND_SPEC
779 /* Provide option to override link_command_spec from machine specific
780 configuration files. */
781 static char *link_command_spec =
784 #ifdef LINK_LIBGCC_SPECIAL
785 /* Don't generate -L options. */
786 static char *link_command_spec = "\
788 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
789 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
790 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
792 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
793 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
798 static char *link_command_spec = "\
800 %{!c:%{!M:%{!MM:%{!E:%{!S:%(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} \
801 %{r} %{s} %{t} %{u*} %{x} %{z} %{Z}\
802 %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
803 %{static:} %{L*} %D %o\
804 %{!nostdlib:%{!nodefaultlibs:%G %L %G}}\
805 %{!A:%{!nostdlib:%{!nostartfiles:%E}}}\
811 /* A vector of options to give to the linker.
812 These options are accumulated by %x,
813 and substituted into the linker command with %X. */
814 static int n_linker_options;
815 static char **linker_options;
817 /* A vector of options to give to the assembler.
818 These options are accumulated by -Wa,
819 and substituted into the assembler command with %Y. */
820 static int n_assembler_options;
821 static char **assembler_options;
823 /* A vector of options to give to the preprocessor.
824 These options are accumulated by -Wp,
825 and substituted into the preprocessor command with %Z. */
826 static int n_preprocessor_options;
827 static char **preprocessor_options;
829 /* Define how to map long options into short ones. */
831 /* This structure describes one mapping. */
834 /* The long option's name. */
836 /* The equivalent short option. */
838 /* Argument info. A string of flag chars; NULL equals no options.
839 a => argument required.
840 o => argument optional.
841 j => join argument to equivalent, making one word.
842 * => require other text after NAME as an argument. */
846 /* This is the table of mappings. Mappings are tried sequentially
847 for each option encountered; the first one that matches, wins. */
849 struct option_map option_map[] =
851 {"--all-warnings", "-Wall", 0},
852 {"--ansi", "-ansi", 0},
853 {"--assemble", "-S", 0},
854 {"--assert", "-A", "a"},
855 {"--comments", "-C", 0},
856 {"--compile", "-c", 0},
857 {"--debug", "-g", "oj"},
858 {"--define-macro", "-D", "aj"},
859 {"--dependencies", "-M", 0},
860 {"--dump", "-d", "a"},
861 {"--dumpbase", "-dumpbase", "a"},
862 {"--entry", "-e", 0},
863 {"--extra-warnings", "-W", 0},
864 {"--for-assembler", "-Wa", "a"},
865 {"--for-linker", "-Xlinker", "a"},
866 {"--force-link", "-u", "a"},
867 {"--imacros", "-imacros", "a"},
868 {"--include", "-include", "a"},
869 {"--include-barrier", "-I-", 0},
870 {"--include-directory", "-I", "aj"},
871 {"--include-directory-after", "-idirafter", "a"},
872 {"--include-prefix", "-iprefix", "a"},
873 {"--include-with-prefix", "-iwithprefix", "a"},
874 {"--include-with-prefix-before", "-iwithprefixbefore", "a"},
875 {"--include-with-prefix-after", "-iwithprefix", "a"},
876 {"--language", "-x", "a"},
877 {"--library-directory", "-L", "a"},
878 {"--machine", "-m", "aj"},
879 {"--machine-", "-m", "*j"},
880 {"--no-line-commands", "-P", 0},
881 {"--no-precompiled-includes", "-noprecomp", 0},
882 {"--no-standard-includes", "-nostdinc", 0},
883 {"--no-standard-libraries", "-nostdlib", 0},
884 {"--no-warnings", "-w", 0},
885 {"--optimize", "-O", "oj"},
886 {"--output", "-o", "a"},
887 {"--pedantic", "-pedantic", 0},
888 {"--pedantic-errors", "-pedantic-errors", 0},
889 {"--pipe", "-pipe", 0},
890 {"--prefix", "-B", "a"},
891 {"--preprocess", "-E", 0},
892 {"--print-search-dirs", "-print-search-dirs", 0},
893 {"--print-file-name", "-print-file-name=", "aj"},
894 {"--print-libgcc-file-name", "-print-libgcc-file-name", 0},
895 {"--print-missing-file-dependencies", "-MG", 0},
896 {"--print-multi-lib", "-print-multi-lib", 0},
897 {"--print-multi-directory", "-print-multi-directory", 0},
898 {"--print-prog-name", "-print-prog-name=", "aj"},
899 {"--profile", "-p", 0},
900 {"--profile-blocks", "-a", 0},
901 {"--quiet", "-q", 0},
902 {"--save-temps", "-save-temps", 0},
903 {"--shared", "-shared", 0},
904 {"--silent", "-q", 0},
905 {"--specs", "-specs=", "aj"},
906 {"--static", "-static", 0},
907 {"--symbolic", "-symbolic", 0},
908 {"--target", "-b", "a"},
909 {"--trace-includes", "-H", 0},
910 {"--traditional", "-traditional", 0},
911 {"--traditional-cpp", "-traditional-cpp", 0},
912 {"--trigraphs", "-trigraphs", 0},
913 {"--undefine-macro", "-U", "aj"},
914 {"--use-version", "-V", "a"},
915 {"--user-dependencies", "-MM", 0},
916 {"--verbose", "-v", 0},
917 {"--version", "-dumpversion", 0},
918 {"--warn-", "-W", "*j"},
919 {"--write-dependencies", "-MD", 0},
920 {"--write-user-dependencies", "-MMD", 0},
924 /* Translate the options described by *ARGCP and *ARGVP.
925 Make a new vector and store it back in *ARGVP,
926 and store its length in *ARGVC. */
929 translate_options (argcp, argvp)
935 char **argv = *argvp;
936 char **newv = (char **) xmalloc ((argc + 2) * 2 * sizeof (char *));
940 newv[newindex++] = argv[i++];
944 /* Translate -- options. */
945 if (argv[i][0] == '-' && argv[i][1] == '-')
947 /* Find a mapping that applies to this option. */
948 for (j = 0; j < sizeof (option_map) / sizeof (option_map[0]); j++)
950 size_t optlen = strlen (option_map[j].name);
951 size_t arglen = strlen (argv[i]);
952 size_t complen = arglen > optlen ? optlen : arglen;
953 char *arginfo = option_map[j].arg_info;
958 if (!strncmp (argv[i], option_map[j].name, complen))
965 k < sizeof (option_map) / sizeof (option_map[0]);
967 if (strlen (option_map[k].name) >= arglen
968 && !strncmp (argv[i], option_map[k].name, arglen))
970 error ("Ambiguous abbreviation %s", argv[i]);
974 if (k != sizeof (option_map) / sizeof (option_map[0]))
980 /* If the option has an argument, accept that. */
981 if (argv[i][optlen] == '=')
982 arg = argv[i] + optlen + 1;
984 /* If this mapping requires extra text at end of name,
985 accept that as "argument". */
986 else if (index (arginfo, '*') != 0)
987 arg = argv[i] + optlen;
989 /* Otherwise, extra text at end means mismatch.
990 Try other mappings. */
995 else if (index (arginfo, '*') != 0)
997 error ("Incomplete `%s' option", option_map[j].name);
1001 /* Handle arguments. */
1002 if (index (arginfo, 'a') != 0)
1008 error ("Missing argument to `%s' option",
1009 option_map[j].name);
1016 else if (index (arginfo, '*') != 0)
1018 else if (index (arginfo, 'o') == 0)
1021 error ("Extraneous argument to `%s' option",
1022 option_map[j].name);
1026 /* Store the translation as one argv elt or as two. */
1027 if (arg != 0 && index (arginfo, 'j') != 0)
1028 newv[newindex++] = concat (option_map[j].equivalent, arg,
1032 newv[newindex++] = option_map[j].equivalent;
1033 newv[newindex++] = arg;
1036 newv[newindex++] = option_map[j].equivalent;
1044 /* Handle old-fashioned options--just copy them through,
1045 with their arguments. */
1046 else if (argv[i][0] == '-')
1048 char *p = argv[i] + 1;
1052 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
1053 nskip += SWITCH_TAKES_ARG (c) - (p[1] != 0);
1054 else if (WORD_SWITCH_TAKES_ARG (p))
1055 nskip += WORD_SWITCH_TAKES_ARG (p);
1056 else if ((c == 'B' || c == 'b' || c == 'V' || c == 'x')
1059 else if (! strcmp (p, "Xlinker"))
1062 /* Watch out for an option at the end of the command line that
1063 is missing arguments, and avoid skipping past the end of the
1065 if (nskip + i > argc)
1070 newv[newindex++] = argv[i++];
1075 /* Ordinary operands, or +e options. */
1076 newv[newindex++] = argv[i++];
1089 #ifdef HAVE_STRERROR
1095 static char buffer[30];
1097 return "cannot access";
1099 if (e > 0 && e < sys_nerr)
1100 return sys_errlist[e];
1102 sprintf (buffer, "Unknown error %d", e);
1113 /* A fully-blank line is a delimiter in the SPEC file and shouldn't
1114 be considered whitespace. */
1115 if (p[0] == '\n' && p[1] == '\n' && p[2] == '\n')
1117 else if (*p == '\n' || *p == ' ' || *p == '\t')
1121 while (*p != '\n') p++;
1131 /* Structure to keep track of the specs that have been defined so far.
1132 These are accessed using %(specname) or %[specname] in a compiler
1137 /* The following 2 fields must be first */
1138 /* to allow EXTRA_SPECS to be initialized */
1139 char *name; /* name of the spec. */
1140 char *ptr; /* available ptr if no static pointer */
1142 /* The following fields are not initialized */
1143 /* by EXTRA_SPECS */
1144 char **ptr_spec; /* pointer to the spec itself. */
1145 struct spec_list *next; /* Next spec in linked list. */
1146 int name_len; /* length of the name */
1147 int alloc_p; /* whether string was allocated */
1150 #define INIT_STATIC_SPEC(NAME,PTR) \
1151 { NAME, NULL_PTR, PTR, (struct spec_list *)0, sizeof (NAME)-1, 0 }
1153 /* List of statically defined specs */
1154 static struct spec_list static_specs[] = {
1155 INIT_STATIC_SPEC ("asm", &asm_spec),
1156 INIT_STATIC_SPEC ("asm_final", &asm_final_spec),
1157 INIT_STATIC_SPEC ("cpp", &cpp_spec),
1158 INIT_STATIC_SPEC ("cc1", &cc1_spec),
1159 INIT_STATIC_SPEC ("cc1plus", &cc1plus_spec),
1160 INIT_STATIC_SPEC ("endfile", &endfile_spec),
1161 INIT_STATIC_SPEC ("link", &link_spec),
1162 INIT_STATIC_SPEC ("lib", &lib_spec),
1163 INIT_STATIC_SPEC ("libgcc", &libgcc_spec),
1164 INIT_STATIC_SPEC ("startfile", &startfile_spec),
1165 INIT_STATIC_SPEC ("switches_need_spaces", &switches_need_spaces),
1166 INIT_STATIC_SPEC ("signed_char", &signed_char_spec),
1167 INIT_STATIC_SPEC ("predefines", &cpp_predefines),
1168 INIT_STATIC_SPEC ("cross_compile", &cross_compile),
1169 INIT_STATIC_SPEC ("version", &compiler_version),
1170 INIT_STATIC_SPEC ("multilib", &multilib_select),
1171 INIT_STATIC_SPEC ("multilib_defaults", &multilib_defaults),
1172 INIT_STATIC_SPEC ("multilib_extra", &multilib_extra),
1173 INIT_STATIC_SPEC ("multilib_matches", &multilib_matches),
1174 INIT_STATIC_SPEC ("linker", &linker_name_spec),
1177 #ifdef EXTRA_SPECS /* additional specs needed */
1178 static struct spec_list extra_specs[] = { EXTRA_SPECS };
1181 /* List of dynamically allocates specs that have been defined so far. */
1183 static struct spec_list *specs = (struct spec_list *)0;
1186 /* Initialize the specs lookup routines. */
1191 struct spec_list *next = (struct spec_list *)0;
1192 struct spec_list *sl = (struct spec_list *)0;
1196 return; /* already initialized */
1199 fprintf (stderr, "Using builtin specs.\n");
1202 for (i = (sizeof (extra_specs) / sizeof (extra_specs[0])) - 1; i >= 0; i--)
1204 sl = &extra_specs[i];
1206 sl->name_len = strlen (sl->name);
1207 sl->ptr_spec = &sl->ptr;
1212 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1; i >= 0; i--)
1214 sl = &static_specs[i];
1223 /* Change the value of spec NAME to SPEC. If SPEC is empty, then the spec is
1224 removed; If the spec starts with a + then SPEC is added to the end of the
1228 set_spec (name, spec)
1232 struct spec_list *sl;
1234 int name_len = strlen (name);
1237 /* If this is the first call, initialize the statically allocated specs */
1240 struct spec_list *next = (struct spec_list *)0;
1241 for (i = (sizeof (static_specs) / sizeof (static_specs[0])) - 1;
1244 sl = &static_specs[i];
1251 /* See if the spec already exists */
1252 for (sl = specs; sl; sl = sl->next)
1253 if (name_len == sl->name_len && !strcmp (sl->name, name))
1258 /* Not found - make it */
1259 sl = (struct spec_list *) xmalloc (sizeof (struct spec_list));
1260 sl->name = save_string (name, strlen (name));
1261 sl->name_len = name_len;
1262 sl->ptr_spec = &sl->ptr;
1264 *(sl->ptr_spec) = "";
1269 old_spec = *(sl->ptr_spec);
1270 *(sl->ptr_spec) = ((spec[0] == '+' && ISSPACE (spec[1]))
1271 ? concat (old_spec, spec + 1, NULL_PTR)
1272 : save_string (spec, strlen (spec)));
1276 fprintf (stderr, "Setting spec %s to '%s'\n\n", name, *(sl->ptr_spec));
1279 /* Free the old spec */
1280 if (old_spec && sl->alloc_p)
1286 /* Accumulate a command (program name and args), and run it. */
1288 /* Vector of pointers to arguments in the current line of specifications. */
1290 static char **argbuf;
1292 /* Number of elements allocated in argbuf. */
1294 static int argbuf_length;
1296 /* Number of elements in argbuf currently in use (containing args). */
1298 static int argbuf_index;
1300 /* We want this on by default all the time now. */
1301 #define MKTEMP_EACH_FILE
1303 #ifdef MKTEMP_EACH_FILE
1305 extern char *make_temp_file PROTO((char *));
1307 /* This is the list of suffixes and codes (%g/%u/%U) and the associated
1310 static struct temp_name {
1311 char *suffix; /* suffix associated with the code. */
1312 int length; /* strlen (suffix). */
1313 int unique; /* Indicates whether %g or %u/%U was used. */
1314 char *filename; /* associated filename. */
1315 int filename_length; /* strlen (filename). */
1316 struct temp_name *next;
1319 extern char *choose_temp_base PROTO((void));
1323 /* Number of commands executed so far. */
1325 static int execution_count;
1327 /* Number of commands that exited with a signal. */
1329 static int signal_count;
1331 /* Name with which this program was invoked. */
1333 static char *programname;
1335 /* Structures to keep track of prefixes to try when looking for files. */
1339 char *prefix; /* String to prepend to the path. */
1340 struct prefix_list *next; /* Next in linked list. */
1341 int require_machine_suffix; /* Don't use without machine_suffix. */
1342 /* 2 means try both machine_suffix and just_machine_suffix. */
1343 int *used_flag_ptr; /* 1 if a file was found with this prefix. */
1348 struct prefix_list *plist; /* List of prefixes to try */
1349 int max_len; /* Max length of a prefix in PLIST */
1350 char *name; /* Name of this list (used in config stuff) */
1353 /* List of prefixes to try when looking for executables. */
1355 static struct path_prefix exec_prefixes = { 0, 0, "exec" };
1357 /* List of prefixes to try when looking for startup (crt0) files. */
1359 static struct path_prefix startfile_prefixes = { 0, 0, "startfile" };
1361 /* List of prefixes to try when looking for include files. */
1363 static struct path_prefix include_prefixes = { 0, 0, "include" };
1365 /* Suffix to attach to directories searched for commands.
1366 This looks like `MACHINE/VERSION/'. */
1368 static char *machine_suffix = 0;
1370 /* Suffix to attach to directories searched for commands.
1371 This is just `MACHINE/'. */
1373 static char *just_machine_suffix = 0;
1375 /* Adjusted value of GCC_EXEC_PREFIX envvar. */
1377 static char *gcc_exec_prefix;
1379 /* Default prefixes to attach to command names. */
1381 #ifdef CROSS_COMPILE /* Don't use these prefixes for a cross compiler. */
1382 #undef MD_EXEC_PREFIX
1383 #undef MD_STARTFILE_PREFIX
1384 #undef MD_STARTFILE_PREFIX_1
1387 #ifndef STANDARD_EXEC_PREFIX
1388 #define STANDARD_EXEC_PREFIX "/usr/local/lib/gcc-lib/"
1389 #endif /* !defined STANDARD_EXEC_PREFIX */
1391 static char *standard_exec_prefix = STANDARD_EXEC_PREFIX;
1392 static char *standard_exec_prefix_1 = "/usr/lib/gcc/";
1393 #ifdef MD_EXEC_PREFIX
1394 static char *md_exec_prefix = MD_EXEC_PREFIX;
1397 #ifndef STANDARD_STARTFILE_PREFIX
1398 #define STANDARD_STARTFILE_PREFIX "/usr/local/lib/"
1399 #endif /* !defined STANDARD_STARTFILE_PREFIX */
1401 #ifdef MD_STARTFILE_PREFIX
1402 static char *md_startfile_prefix = MD_STARTFILE_PREFIX;
1404 #ifdef MD_STARTFILE_PREFIX_1
1405 static char *md_startfile_prefix_1 = MD_STARTFILE_PREFIX_1;
1407 static char *standard_startfile_prefix = STANDARD_STARTFILE_PREFIX;
1408 static char *standard_startfile_prefix_1 = "/lib/";
1409 static char *standard_startfile_prefix_2 = "/usr/lib/";
1411 #ifndef TOOLDIR_BASE_PREFIX
1412 #define TOOLDIR_BASE_PREFIX "/usr/local/"
1414 static char *tooldir_base_prefix = TOOLDIR_BASE_PREFIX;
1415 static char *tooldir_prefix;
1417 /* Subdirectory to use for locating libraries. Set by
1418 set_multilib_dir based on the compilation options. */
1420 static char *multilib_dir;
1422 /* Clear out the vector of arguments (after a command is executed). */
1430 /* Add one argument to the vector at the end.
1431 This is done when a space is seen or at the end of the line.
1432 If DELETE_ALWAYS is nonzero, the arg is a filename
1433 and the file should be deleted eventually.
1434 If DELETE_FAILURE is nonzero, the arg is a filename
1435 and the file should be deleted if this compilation fails. */
1438 store_arg (arg, delete_always, delete_failure)
1440 int delete_always, delete_failure;
1442 if (argbuf_index + 1 == argbuf_length)
1444 = (char **) xrealloc (argbuf, (argbuf_length *= 2) * sizeof (char *));
1446 argbuf[argbuf_index++] = arg;
1447 argbuf[argbuf_index] = 0;
1449 if (delete_always || delete_failure)
1450 record_temp_file (arg, delete_always, delete_failure);
1453 /* Read compilation specs from a file named FILENAME,
1454 replacing the default ones.
1456 A suffix which starts with `*' is a definition for
1457 one of the machine-specific sub-specs. The "suffix" should be
1458 *asm, *cc1, *cpp, *link, *startfile, *signed_char, etc.
1459 The corresponding spec is stored in asm_spec, etc.,
1460 rather than in the `compilers' vector.
1462 Anything invalid in the file is a fatal error. */
1465 read_specs (filename, main_p)
1471 struct stat statbuf;
1476 fprintf (stderr, "Reading specs from %s\n", filename);
1478 /* Open and stat the file. */
1479 desc = open (filename, O_RDONLY, 0);
1481 pfatal_with_name (filename);
1482 if (stat (filename, &statbuf) < 0)
1483 pfatal_with_name (filename);
1485 /* Read contents of file into BUFFER. */
1486 buffer = xmalloc ((unsigned) statbuf.st_size + 1);
1487 readlen = read (desc, buffer, (unsigned) statbuf.st_size);
1489 pfatal_with_name (filename);
1490 buffer[readlen] = 0;
1493 /* Scan BUFFER for specs, putting them in the vector. */
1499 char *in, *out, *p1, *p2, *p3;
1501 /* Advance P in BUFFER to the next nonblank nocomment line. */
1502 p = skip_whitespace (p);
1506 /* Is this a special command that starts with '%'? */
1507 /* Don't allow this for the main specs file, since it would
1508 encourage people to overwrite it. */
1509 if (*p == '%' && !main_p)
1512 while (*p && *p != '\n')
1515 p++; /* Skip '\n' */
1517 if (!strncmp (p1, "%include", sizeof ("%include")-1)
1518 && (p1[sizeof "%include" - 1] == ' '
1519 || p1[sizeof "%include" - 1] == '\t'))
1523 p1 += sizeof ("%include");
1524 while (*p1 == ' ' || *p1 == '\t')
1527 if (*p1++ != '<' || p[-2] != '>')
1528 fatal ("specs %%include syntax malformed after %d characters",
1532 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1533 read_specs (new_filename ? new_filename : p1, FALSE);
1536 else if (!strncmp (p1, "%include_noerr", sizeof "%include_noerr" - 1)
1537 && (p1[sizeof "%include_noerr" - 1] == ' '
1538 || p1[sizeof "%include_noerr" - 1] == '\t'))
1542 p1 += sizeof "%include_noerr";
1543 while (*p1 == ' ' || *p1 == '\t') p1++;
1545 if (*p1++ != '<' || p[-2] != '>')
1546 fatal ("specs %%include syntax malformed after %d characters",
1550 new_filename = find_a_file (&startfile_prefixes, p1, R_OK);
1552 read_specs (new_filename, FALSE);
1553 else if (verbose_flag)
1554 fprintf (stderr, "Could not find specs file %s\n", p1);
1557 else if (!strncmp (p1, "%rename", sizeof "%rename" - 1)
1558 && (p1[sizeof "%rename" - 1] == ' '
1559 || p1[sizeof "%rename" - 1] == '\t'))
1562 struct spec_list *sl;
1564 /* Get original name */
1565 p1 += sizeof "%rename";
1566 while (*p1 == ' ' || *p1 == '\t')
1569 if (! ISALPHA (*p1))
1570 fatal ("specs %%rename syntax malformed after %d characters",
1574 while (*p2 && !ISSPACE (*p2))
1577 if (*p2 != ' ' && *p2 != '\t')
1578 fatal ("specs %%rename syntax malformed after %d characters",
1583 while (*p2 == ' ' || *p2 == '\t')
1586 if (! ISALPHA (*p2))
1587 fatal ("specs %%rename syntax malformed after %d characters",
1590 /* Get new spec name */
1592 while (*p3 && !ISSPACE (*p3))
1596 fatal ("specs %%rename syntax malformed after %d characters",
1600 for (sl = specs; sl; sl = sl->next)
1601 if (name_len == sl->name_len && !strcmp (sl->name, p1))
1605 fatal ("specs %s spec was not found to be renamed", p1);
1607 if (strcmp (p1, p2) == 0)
1612 fprintf (stderr, "rename spec %s to %s\n", p1, p2);
1614 fprintf (stderr, "spec is '%s'\n\n", *(sl->ptr_spec));
1618 set_spec (p2, *(sl->ptr_spec));
1620 free (*(sl->ptr_spec));
1622 *(sl->ptr_spec) = "";
1627 fatal ("specs unknown %% command after %d characters",
1631 /* Find the colon that should end the suffix. */
1633 while (*p1 && *p1 != ':' && *p1 != '\n')
1636 /* The colon shouldn't be missing. */
1638 fatal ("specs file malformed after %d characters", p1 - buffer);
1640 /* Skip back over trailing whitespace. */
1642 while (p2 > buffer && (p2[-1] == ' ' || p2[-1] == '\t'))
1645 /* Copy the suffix to a string. */
1646 suffix = save_string (p, p2 - p);
1647 /* Find the next line. */
1648 p = skip_whitespace (p1 + 1);
1650 fatal ("specs file malformed after %d characters", p - buffer);
1653 /* Find next blank line or end of string. */
1654 while (*p1 && !(*p1 == '\n' && (p1[1] == '\n' || p1[1] == '\0')))
1657 /* Specs end at the blank line and do not include the newline. */
1658 spec = save_string (p, p1 - p);
1661 /* Delete backslash-newline sequences from the spec. */
1666 if (in[0] == '\\' && in[1] == '\n')
1668 else if (in[0] == '#')
1669 while (*in && *in != '\n')
1677 if (suffix[0] == '*')
1679 if (! strcmp (suffix, "*link_command"))
1680 link_command_spec = spec;
1682 set_spec (suffix + 1, spec);
1686 /* Add this pair to the vector. */
1688 = ((struct compiler *)
1689 xrealloc (compilers,
1690 (n_compilers + 2) * sizeof (struct compiler)));
1692 compilers[n_compilers].suffix = suffix;
1693 bzero ((char *) compilers[n_compilers].spec,
1694 sizeof compilers[n_compilers].spec);
1695 compilers[n_compilers].spec[0] = spec;
1697 bzero ((char *) &compilers[n_compilers],
1698 sizeof compilers[n_compilers]);
1702 link_command_spec = spec;
1705 if (link_command_spec == 0)
1706 fatal ("spec file has no spec for linking");
1709 /* Record the names of temporary files we tell compilers to write,
1710 and delete them at the end of the run. */
1712 /* This is the common prefix we use to make temp file names.
1713 It is chosen once for each run of this program.
1714 It is substituted into a spec by %g.
1715 Thus, all temp file names contain this prefix.
1716 In practice, all temp file names start with this prefix.
1718 This prefix comes from the envvar TMPDIR if it is defined;
1719 otherwise, from the P_tmpdir macro if that is defined;
1720 otherwise, in /usr/tmp or /tmp;
1721 or finally the current directory if all else fails. */
1723 static char *temp_filename;
1725 /* Length of the prefix. */
1727 static int temp_filename_length;
1729 /* Define the list of temporary files to delete. */
1734 struct temp_file *next;
1737 /* Queue of files to delete on success or failure of compilation. */
1738 static struct temp_file *always_delete_queue;
1739 /* Queue of files to delete on failure of compilation. */
1740 static struct temp_file *failure_delete_queue;
1742 /* Record FILENAME as a file to be deleted automatically.
1743 ALWAYS_DELETE nonzero means delete it if all compilation succeeds;
1744 otherwise delete it in any case.
1745 FAIL_DELETE nonzero means delete it if a compilation step fails;
1746 otherwise delete it in any case. */
1749 record_temp_file (filename, always_delete, fail_delete)
1754 register char *name;
1755 name = xmalloc (strlen (filename) + 1);
1756 strcpy (name, filename);
1760 register struct temp_file *temp;
1761 for (temp = always_delete_queue; temp; temp = temp->next)
1762 if (! strcmp (name, temp->name))
1765 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1766 temp->next = always_delete_queue;
1768 always_delete_queue = temp;
1775 register struct temp_file *temp;
1776 for (temp = failure_delete_queue; temp; temp = temp->next)
1777 if (! strcmp (name, temp->name))
1780 temp = (struct temp_file *) xmalloc (sizeof (struct temp_file));
1781 temp->next = failure_delete_queue;
1783 failure_delete_queue = temp;
1789 /* Delete all the temporary files whose names we previously recorded. */
1792 delete_if_ordinary (name)
1799 printf ("Delete %s? (y or n) ", name);
1803 while ((c = getchar ()) != '\n' && c != EOF)
1806 if (i == 'y' || i == 'Y')
1808 if (stat (name, &st) >= 0 && S_ISREG (st.st_mode))
1809 if (unlink (name) < 0)
1811 perror_with_name (name);
1815 delete_temp_files ()
1817 register struct temp_file *temp;
1819 for (temp = always_delete_queue; temp; temp = temp->next)
1820 delete_if_ordinary (temp->name);
1821 always_delete_queue = 0;
1824 /* Delete all the files to be deleted on error. */
1827 delete_failure_queue ()
1829 register struct temp_file *temp;
1831 for (temp = failure_delete_queue; temp; temp = temp->next)
1832 delete_if_ordinary (temp->name);
1836 clear_failure_queue ()
1838 failure_delete_queue = 0;
1841 /* Routine to add variables to the environment. We do this to pass
1842 the pathname of the gcc driver, and the directories search to the
1843 collect2 program, which is being run as ld. This way, we can be
1844 sure of executing the right compiler when collect2 wants to build
1845 constructors and destructors. Since the environment variables we
1846 use come from an obstack, we don't have to worry about allocating
1855 #ifndef VMS /* nor about VMS */
1857 extern char **environ;
1858 char **old_environ = environ;
1862 int str_len = strlen (str);
1866 while ((ch = *p++) != '\0' && ch != '=')
1872 /* Search for replacing an existing environment variable, and
1873 count the number of total environment variables. */
1874 for (envp = old_environ; *envp; envp++)
1877 if (!strncmp (str, *envp, name_len))
1884 /* Add a new environment variable */
1885 environ = (char **) xmalloc (sizeof (char *) * (num_envs+2));
1887 memcpy ((char *) (environ + 1), (char *) old_environ,
1888 sizeof (char *) * (num_envs+1));
1893 #endif /* HAVE_PUTENV */
1896 /* Build a list of search directories from PATHS.
1897 PREFIX is a string to prepend to the list.
1898 If CHECK_DIR_P is non-zero we ensure the directory exists.
1899 This is used mostly by putenv_from_prefixes so we use `collect_obstack'.
1900 It is also used by the --print-search-dirs flag. */
1903 build_search_list (paths, prefix, check_dir_p)
1904 struct path_prefix *paths;
1908 int suffix_len = (machine_suffix) ? strlen (machine_suffix) : 0;
1910 = (just_machine_suffix) ? strlen (just_machine_suffix) : 0;
1911 int first_time = TRUE;
1912 struct prefix_list *pprefix;
1914 obstack_grow (&collect_obstack, prefix, strlen (prefix));
1916 for (pprefix = paths->plist; pprefix != 0; pprefix = pprefix->next)
1918 int len = strlen (pprefix->prefix);
1922 || is_directory (pprefix->prefix, machine_suffix, 0)))
1925 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1928 obstack_grow (&collect_obstack, pprefix->prefix, len);
1929 obstack_grow (&collect_obstack, machine_suffix, suffix_len);
1932 if (just_machine_suffix
1933 && pprefix->require_machine_suffix == 2
1935 || is_directory (pprefix->prefix, just_machine_suffix, 0)))
1938 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1941 obstack_grow (&collect_obstack, pprefix->prefix, len);
1942 obstack_grow (&collect_obstack, just_machine_suffix,
1946 if (! pprefix->require_machine_suffix)
1949 obstack_1grow (&collect_obstack, PATH_SEPARATOR);
1952 obstack_grow (&collect_obstack, pprefix->prefix, len);
1956 obstack_1grow (&collect_obstack, '\0');
1957 return obstack_finish (&collect_obstack);
1960 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
1964 putenv_from_prefixes (paths, env_var)
1965 struct path_prefix *paths;
1968 putenv (build_search_list (paths, env_var, 1));
1971 /* Search for NAME using the prefix list PREFIXES. MODE is passed to
1972 access to check permissions.
1973 Return 0 if not found, otherwise return its name, allocated with malloc. */
1976 find_a_file (pprefix, name, mode)
1977 struct path_prefix *pprefix;
1982 char *file_suffix = ((mode & X_OK) != 0 ? EXECUTABLE_SUFFIX : "");
1983 struct prefix_list *pl;
1984 int len = pprefix->max_len + strlen (name) + strlen (file_suffix) + 1;
1987 len += strlen (machine_suffix);
1989 temp = xmalloc (len);
1991 /* Determine the filename to execute (special case for absolute paths). */
1993 if (*name == '/' || *name == DIR_SEPARATOR
1994 /* Check for disk name on MS-DOS-based systems. */
1995 || (DIR_SEPARATOR == '\\' && name[1] == ':'
1996 && (name[2] == DIR_SEPARATOR || name[2] == '/')))
1998 if (access (name, mode))
2000 strcpy (temp, name);
2005 for (pl = pprefix->plist; pl; pl = pl->next)
2009 /* Some systems have a suffix for executable files.
2010 So try appending that first. */
2011 if (file_suffix[0] != 0)
2013 strcpy (temp, pl->prefix);
2014 strcat (temp, machine_suffix);
2015 strcat (temp, name);
2016 strcat (temp, file_suffix);
2017 if (access (temp, mode) == 0)
2019 if (pl->used_flag_ptr != 0)
2020 *pl->used_flag_ptr = 1;
2025 /* Now try just the name. */
2026 strcpy (temp, pl->prefix);
2027 strcat (temp, machine_suffix);
2028 strcat (temp, name);
2029 if (access (temp, mode) == 0)
2031 if (pl->used_flag_ptr != 0)
2032 *pl->used_flag_ptr = 1;
2037 /* Certain prefixes are tried with just the machine type,
2038 not the version. This is used for finding as, ld, etc. */
2039 if (just_machine_suffix && pl->require_machine_suffix == 2)
2041 /* Some systems have a suffix for executable files.
2042 So try appending that first. */
2043 if (file_suffix[0] != 0)
2045 strcpy (temp, pl->prefix);
2046 strcat (temp, just_machine_suffix);
2047 strcat (temp, name);
2048 strcat (temp, file_suffix);
2049 if (access (temp, mode) == 0)
2051 if (pl->used_flag_ptr != 0)
2052 *pl->used_flag_ptr = 1;
2057 strcpy (temp, pl->prefix);
2058 strcat (temp, just_machine_suffix);
2059 strcat (temp, name);
2060 if (access (temp, mode) == 0)
2062 if (pl->used_flag_ptr != 0)
2063 *pl->used_flag_ptr = 1;
2068 /* Certain prefixes can't be used without the machine suffix
2069 when the machine or version is explicitly specified. */
2070 if (! pl->require_machine_suffix)
2072 /* Some systems have a suffix for executable files.
2073 So try appending that first. */
2074 if (file_suffix[0] != 0)
2076 strcpy (temp, pl->prefix);
2077 strcat (temp, name);
2078 strcat (temp, file_suffix);
2079 if (access (temp, mode) == 0)
2081 if (pl->used_flag_ptr != 0)
2082 *pl->used_flag_ptr = 1;
2087 strcpy (temp, pl->prefix);
2088 strcat (temp, name);
2089 if (access (temp, mode) == 0)
2091 if (pl->used_flag_ptr != 0)
2092 *pl->used_flag_ptr = 1;
2102 /* Add an entry for PREFIX in PLIST. If FIRST is set, it goes
2103 at the start of the list, otherwise it goes at the end.
2105 If WARN is nonzero, we will warn if no file is found
2106 through this prefix. WARN should point to an int
2107 which will be set to 1 if this entry is used.
2109 COMPONENT is the value to be passed to update_path.
2111 REQUIRE_MACHINE_SUFFIX is 1 if this prefix can't be used without
2112 the complete value of machine_suffix.
2113 2 means try both machine_suffix and just_machine_suffix. */
2116 add_prefix (pprefix, prefix, component, first, require_machine_suffix, warn)
2117 struct path_prefix *pprefix;
2121 int require_machine_suffix;
2124 struct prefix_list *pl, **prev;
2127 if (! first && pprefix->plist)
2129 for (pl = pprefix->plist; pl->next; pl = pl->next)
2134 prev = &pprefix->plist;
2136 /* Keep track of the longest prefix */
2138 prefix = update_path (prefix, component);
2139 len = strlen (prefix);
2140 if (len > pprefix->max_len)
2141 pprefix->max_len = len;
2143 pl = (struct prefix_list *) xmalloc (sizeof (struct prefix_list));
2144 pl->prefix = save_string (prefix, len);
2145 pl->require_machine_suffix = require_machine_suffix;
2146 pl->used_flag_ptr = warn;
2153 pl->next = (struct prefix_list *) 0;
2157 /* Print warnings for any prefixes in the list PPREFIX that were not used. */
2160 unused_prefix_warnings (pprefix)
2161 struct path_prefix *pprefix;
2163 struct prefix_list *pl = pprefix->plist;
2167 if (pl->used_flag_ptr != 0 && !*pl->used_flag_ptr)
2169 if (pl->require_machine_suffix && machine_suffix)
2170 error ("file path prefix `%s%s' never used", pl->prefix,
2173 error ("file path prefix `%s' never used", pl->prefix);
2175 /* Prevent duplicate warnings. */
2176 *pl->used_flag_ptr = 1;
2184 /* Execute the command specified by the arguments on the current line of spec.
2185 When using pipes, this includes several piped-together commands
2186 with `|' between them.
2188 Return 0 if successful, -1 if failed. */
2194 int n_commands; /* # of command. */
2198 char *prog; /* program name. */
2199 char **argv; /* vector of args. */
2200 int pid; /* pid of process for this command. */
2203 struct command *commands; /* each command buffer with above info. */
2205 /* Count # of piped commands. */
2206 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2207 if (strcmp (argbuf[i], "|") == 0)
2210 /* Get storage for each command. */
2212 = (struct command *) alloca (n_commands * sizeof (struct command));
2214 /* Split argbuf into its separate piped processes,
2215 and record info about each one.
2216 Also search for the programs that are to be run. */
2218 commands[0].prog = argbuf[0]; /* first command. */
2219 commands[0].argv = &argbuf[0];
2220 string = find_a_file (&exec_prefixes, commands[0].prog, X_OK);
2223 commands[0].argv[0] = string;
2225 for (n_commands = 1, i = 0; i < argbuf_index; i++)
2226 if (strcmp (argbuf[i], "|") == 0)
2227 { /* each command. */
2228 #if defined (__MSDOS__) || (defined (_WIN32) && defined (__CYGWIN32_)) || defined (OS2) || defined (VMS)
2229 fatal ("-pipe not supported");
2231 argbuf[i] = 0; /* termination of command args. */
2232 commands[n_commands].prog = argbuf[i + 1];
2233 commands[n_commands].argv = &argbuf[i + 1];
2234 string = find_a_file (&exec_prefixes, commands[n_commands].prog, X_OK);
2236 commands[n_commands].argv[0] = string;
2240 argbuf[argbuf_index] = 0;
2242 /* If -v, print what we are about to do, and maybe query. */
2246 /* For help listings, put a blank line between sub-processes. */
2247 if (print_help_list)
2248 fputc ('\n', stderr);
2250 /* Print each piped command as a separate line. */
2251 for (i = 0; i < n_commands ; i++)
2255 for (j = commands[i].argv; *j; j++)
2256 fprintf (stderr, " %s", *j);
2258 /* Print a pipe symbol after all but the last command. */
2259 if (i + 1 != n_commands)
2260 fprintf (stderr, " |");
2261 fprintf (stderr, "\n");
2265 fprintf (stderr, "\nGo ahead? (y or n) ");
2269 while (getchar () != '\n')
2272 if (i != 'y' && i != 'Y')
2277 /* Run each piped subprocess. */
2279 for (i = 0; i < n_commands; i++)
2281 char *errmsg_fmt, *errmsg_arg;
2282 char *string = commands[i].argv[0];
2284 commands[i].pid = pexecute (string, commands[i].argv,
2285 programname, temp_filename,
2286 &errmsg_fmt, &errmsg_arg,
2287 ((i == 0 ? PEXECUTE_FIRST : 0)
2288 | (i + 1 == n_commands ? PEXECUTE_LAST : 0)
2289 | (string == commands[i].prog
2290 ? PEXECUTE_SEARCH : 0)
2291 | (verbose_flag ? PEXECUTE_VERBOSE : 0)));
2293 if (commands[i].pid == -1)
2294 pfatal_pexecute (errmsg_fmt, errmsg_arg);
2296 if (string != commands[i].prog)
2302 /* Wait for all the subprocesses to finish.
2303 We don't care what order they finish in;
2304 we know that N_COMMANDS waits will get them all.
2305 Ignore subprocesses that we don't know about,
2306 since they can be spawned by the process that exec'ed us. */
2311 for (i = 0; i < n_commands; )
2317 pid = pwait (commands[i].pid, &status, 0);
2321 for (j = 0; j < n_commands; j++)
2322 if (commands[j].pid == pid)
2327 if (WIFSIGNALED (status))
2329 fatal ("Internal compiler error: program %s got fatal signal %d",
2330 commands[j].prog, WTERMSIG (status));
2334 else if (WIFEXITED (status)
2335 && WEXITSTATUS (status) >= MIN_FATAL_STATUS)
2345 /* Find all the switches given to us
2346 and make a vector describing them.
2347 The elements of the vector are strings, one per switch given.
2348 If a switch uses following arguments, then the `part1' field
2349 is the switch itself and the `args' field
2350 is a null-terminated vector containing the following arguments.
2351 The `live_cond' field is 1 if the switch is true in a conditional spec,
2352 -1 if false (overridden by a later switch), and is initialized to zero.
2353 The `valid' field is nonzero if any spec has looked at this switch;
2354 if it remains zero at the end of the run, it must be meaningless. */
2364 static struct switchstr *switches;
2366 static int n_switches;
2374 /* Also a vector of input files specified. */
2376 static struct infile *infiles;
2378 static int n_infiles;
2380 /* This counts the number of libraries added by LANG_SPECIFIC_DRIVER, so that
2381 we can tell if there were any user supplied any files or libraries. */
2383 static int added_libraries;
2385 /* And a vector of corresponding output files is made up later. */
2387 static char **outfiles;
2389 /* Used to track if none of the -B paths are used. */
2392 /* Used to track if standard path isn't used and -b or -V is specified. */
2393 static int warn_std;
2395 /* Gives value to pass as "warn" to add_prefix for standard prefixes. */
2396 static int *warn_std_ptr = 0;
2399 #if defined(HAVE_OBJECT_SUFFIX) || defined(HAVE_EXECUTABLE_SUFFIX)
2401 /* Convert NAME to a new name if it is the standard suffix. DO_EXE
2402 is true if we should look for an executable suffix as well. */
2405 convert_filename (name, do_exe)
2410 int len = strlen (name);
2412 #ifdef HAVE_OBJECT_SUFFIX
2413 /* Convert x.o to x.obj if OBJECT_SUFFIX is ".obj". */
2415 && name[len - 2] == '.'
2416 && name[len - 1] == 'o')
2418 obstack_grow (&obstack, name, len - 2);
2419 obstack_grow0 (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
2420 name = obstack_finish (&obstack);
2424 #ifdef HAVE_EXECUTABLE_SUFFIX
2425 /* If there is no filetype, make it the executable suffix (which includes
2426 the "."). But don't get confused if we have just "-o". */
2427 if (! do_exe || EXECUTABLE_SUFFIX[0] == 0 || (len == 2 && name[0] == '-'))
2430 for (i = len - 1; i >= 0; i--)
2431 if (name[i] == '/' || name[i] == DIR_SEPARATOR)
2434 for (i++; i < len; i++)
2438 obstack_grow (&obstack, name, len);
2439 obstack_grow0 (&obstack, EXECUTABLE_SUFFIX, strlen (EXECUTABLE_SUFFIX));
2440 name = obstack_finish (&obstack);
2447 /* Display the command line switches accepted by gcc. */
2451 printf ("Usage: %s [options] file...\n", programname);
2452 printf ("Options:\n");
2454 printf (" --help Display this information\n");
2456 printf (" (Use '-v --help' to display command line options of sub-processes)\n");
2457 printf (" -dumpspecs Display all of the built in spec strings\n");
2458 printf (" -dumpversion Display the version of the compiler\n");
2459 printf (" -dumpmachine Display the compiler's target processor\n");
2460 printf (" -print-search-dirs Display the directories in the compiler's search path\n");
2461 printf (" -print-libgcc-file-name Display the name of the compiler's companion library\n");
2462 printf (" -print-file-name=<lib> Display the full path to library <lib>\n");
2463 printf (" -print-prog-name=<prog> Display the full path to compiler component <prog>\n");
2464 printf (" -print-multi-directory Display the root directory for versions of libgcc\n");
2465 printf (" -print-multi-lib Display the mapping between command line options and\n");
2466 printf (" multiple library search directories\n");
2467 printf (" -Wa,<options> Pass comma-separated <options> on to the assembler\n");
2468 printf (" -Wp,<options> Pass comma-separated <options> on to the preprocessor\n");
2469 printf (" -Wl,<options> Pass comma-separated <options> on to the linker\n");
2470 printf (" -Xlinker <arg> Pass <arg> on to the linker\n");
2471 printf (" -save-temps Do not delete intermediate files\n");
2472 printf (" -pipe Use pipes rather than intermediate files\n");
2473 printf (" -specs=<file> Override builtin specs with the contents of <file>\n");
2474 printf (" -B <directory> Add <directory> to the compiler's search paths\n");
2475 printf (" -b <machine> Run gcc for target <machine>, if installed\n");
2476 printf (" -V <version> Run gcc version number <version>, if installed\n");
2477 printf (" -v Display the programs invoked by the compiler\n");
2478 printf (" -E Preprocess only; do not compile, assemble or link\n");
2479 printf (" -S Compile only; do not assemble or link\n");
2480 printf (" -c Compile and assemble, but do not link\n");
2481 printf (" -o <file> Place the output into <file>\n");
2482 printf (" -x <language> Specify the language of the following input files\n");
2483 printf (" Permissable languages include: c c++ assembler none\n");
2484 printf (" 'none' means revert to the default behaviour of\n");
2485 printf (" guessing the language based on the file's extension\n");
2487 printf ("\nOptions starting with -g, -f, -m, -O or -W are automatically passed on to\n");
2488 printf ("the various sub-processes invoked by %s. In order to pass other options\n",
2490 printf ("on to these processes the -W<letter> options must be used.\n");
2492 /* The rest of the options are displayed by invocations of the various
2497 add_preprocessor_option (option, len)
2501 n_preprocessor_options++;
2503 if (! preprocessor_options)
2504 preprocessor_options
2505 = (char **) xmalloc (n_preprocessor_options * sizeof (char **));
2507 preprocessor_options
2508 = (char **) xrealloc (preprocessor_options,
2509 n_preprocessor_options * sizeof (char **));
2511 preprocessor_options [n_preprocessor_options - 1] = save_string (option, len);
2515 add_assembler_option (option, len)
2519 n_assembler_options++;
2521 if (! assembler_options)
2523 = (char **) xmalloc (n_assembler_options * sizeof (char **));
2526 = (char **) xrealloc (assembler_options,
2527 n_assembler_options * sizeof (char **));
2529 assembler_options [n_assembler_options - 1] = save_string (option, len);
2533 add_linker_option (option, len)
2539 if (! linker_options)
2541 = (char **) xmalloc (n_linker_options * sizeof (char **));
2544 = (char **) xrealloc (linker_options,
2545 n_linker_options * sizeof (char **));
2547 linker_options [n_linker_options - 1] = save_string (option, len);
2550 /* Create the vector `switches' and its contents.
2551 Store its length in `n_switches'. */
2554 process_command (argc, argv)
2560 char *spec_lang = 0;
2561 int last_language_n_infiles;
2564 int lang_n_infiles = 0;
2566 gcc_exec_prefix = getenv ("GCC_EXEC_PREFIX");
2570 added_libraries = 0;
2572 /* Figure compiler version from version string. */
2574 compiler_version = save_string (version_string, strlen (version_string));
2575 for (temp = compiler_version; *temp; ++temp)
2584 /* Set up the default search paths. */
2586 if (gcc_exec_prefix)
2588 int len = strlen (gcc_exec_prefix);
2589 if (len > sizeof ("/lib/gcc-lib/")-1
2590 && (gcc_exec_prefix[len-1] == '/'
2591 || gcc_exec_prefix[len-1] == DIR_SEPARATOR))
2593 temp = gcc_exec_prefix + len - sizeof ("/lib/gcc-lib/") + 1;
2594 if ((*temp == '/' || *temp == DIR_SEPARATOR)
2595 && strncmp (temp+1, "lib", 3) == 0
2596 && (temp[4] == '/' || temp[4] == DIR_SEPARATOR)
2597 && strncmp (temp+5, "gcc-lib", 7) == 0)
2598 len -= sizeof ("/lib/gcc-lib/") - 1;
2601 set_std_prefix (gcc_exec_prefix, len);
2602 add_prefix (&exec_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2603 add_prefix (&startfile_prefixes, gcc_exec_prefix, "GCC", 0, 0, NULL_PTR);
2606 /* COMPILER_PATH and LIBRARY_PATH have values
2607 that are lists of directory names with colons. */
2609 GET_ENV_PATH_LIST (temp, "COMPILER_PATH");
2612 char *startp, *endp;
2613 char *nstore = (char *) alloca (strlen (temp) + 3);
2615 startp = endp = temp;
2618 if (*endp == PATH_SEPARATOR || *endp == 0)
2620 strncpy (nstore, startp, endp-startp);
2622 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2623 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2625 nstore[endp-startp] = DIR_SEPARATOR;
2626 nstore[endp-startp+1] = 0;
2629 nstore[endp-startp] = 0;
2630 add_prefix (&exec_prefixes, nstore, 0, 0, 0, NULL_PTR);
2631 add_prefix (&include_prefixes,
2632 concat (nstore, "include", NULL_PTR),
2636 endp = startp = endp + 1;
2643 GET_ENV_PATH_LIST (temp, "LIBRARY_PATH");
2644 if (temp && *cross_compile == '0')
2646 char *startp, *endp;
2647 char *nstore = (char *) alloca (strlen (temp) + 3);
2649 startp = endp = temp;
2652 if (*endp == PATH_SEPARATOR || *endp == 0)
2654 strncpy (nstore, startp, endp-startp);
2656 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2657 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2659 nstore[endp-startp] = DIR_SEPARATOR;
2660 nstore[endp-startp+1] = 0;
2663 nstore[endp-startp] = 0;
2664 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2668 endp = startp = endp + 1;
2675 /* Use LPATH like LIBRARY_PATH (for the CMU build program). */
2676 GET_ENV_PATH_LIST (temp, "LPATH");
2677 if (temp && *cross_compile == '0')
2679 char *startp, *endp;
2680 char *nstore = (char *) alloca (strlen (temp) + 3);
2682 startp = endp = temp;
2685 if (*endp == PATH_SEPARATOR || *endp == 0)
2687 strncpy (nstore, startp, endp-startp);
2689 strcpy (nstore, concat (".", dir_separator_str, NULL_PTR));
2690 else if (endp[-1] != '/' && endp[-1] != DIR_SEPARATOR)
2692 nstore[endp-startp] = DIR_SEPARATOR;
2693 nstore[endp-startp+1] = 0;
2696 nstore[endp-startp] = 0;
2697 add_prefix (&startfile_prefixes, nstore, NULL_PTR,
2701 endp = startp = endp + 1;
2708 /* Convert new-style -- options to old-style. */
2709 translate_options (&argc, &argv);
2711 #ifdef LANG_SPECIFIC_DRIVER
2712 /* Do language-specific adjustment/addition of flags. */
2713 lang_specific_driver (fatal, &argc, &argv, &added_libraries);
2716 /* Scan argv twice. Here, the first time, just count how many switches
2717 there will be in their vector, and how many input files in theirs.
2718 Here we also parse the switches that cc itself uses (e.g. -v). */
2720 for (i = 1; i < argc; i++)
2722 if (! strcmp (argv[i], "-dumpspecs"))
2724 struct spec_list *sl;
2726 for (sl = specs; sl; sl = sl->next)
2727 printf ("*%s:\n%s\n\n", sl->name, *(sl->ptr_spec));
2730 else if (! strcmp (argv[i], "-dumpversion"))
2732 printf ("%s\n", spec_version);
2735 else if (! strcmp (argv[i], "-dumpmachine"))
2737 printf ("%s\n", spec_machine);
2740 else if (strcmp (argv[i], "-fhelp") == 0)
2742 /* translate_options () has turned --help into -fhelp. */
2743 print_help_list = 1;
2745 /* We will be passing a dummy file on to the sub-processes. */
2749 add_preprocessor_option ("--help", 6);
2750 add_assembler_option ("--help", 6);
2751 add_linker_option ("--help", 6);
2753 else if (! strcmp (argv[i], "-print-search-dirs"))
2754 print_search_dirs = 1;
2755 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
2756 print_file_name = "libgcc.a";
2757 else if (! strncmp (argv[i], "-print-file-name=", 17))
2758 print_file_name = argv[i] + 17;
2759 else if (! strncmp (argv[i], "-print-prog-name=", 17))
2760 print_prog_name = argv[i] + 17;
2761 else if (! strcmp (argv[i], "-print-multi-lib"))
2762 print_multi_lib = 1;
2763 else if (! strcmp (argv[i], "-print-multi-directory"))
2764 print_multi_directory = 1;
2765 else if (! strncmp (argv[i], "-Wa,", 4))
2768 /* Pass the rest of this option to the assembler. */
2770 /* Split the argument at commas. */
2772 for (j = 4; argv[i][j]; j++)
2773 if (argv[i][j] == ',')
2775 add_assembler_option (argv[i] + prev, j - prev);
2779 /* Record the part after the last comma. */
2780 add_assembler_option (argv[i] + prev, j - prev);
2782 else if (! strncmp (argv[i], "-Wp,", 4))
2785 /* Pass the rest of this option to the preprocessor. */
2787 /* Split the argument at commas. */
2789 for (j = 4; argv[i][j]; j++)
2790 if (argv[i][j] == ',')
2792 add_preprocessor_option (argv[i] + prev, j - prev);
2796 /* Record the part after the last comma. */
2797 add_preprocessor_option (argv[i] + prev, j - prev);
2799 else if (argv[i][0] == '+' && argv[i][1] == 'e')
2800 /* The +e options to the C++ front-end. */
2802 else if (strncmp (argv[i], "-Wl,", 4) == 0)
2805 /* Split the argument at commas. */
2806 for (j = 3; argv[i][j]; j++)
2807 n_infiles += (argv[i][j] == ',');
2809 else if (strcmp (argv[i], "-Xlinker") == 0)
2812 fatal ("argument to `-Xlinker' is missing");
2817 else if (strncmp (argv[i], "-l", 2) == 0)
2819 else if (strcmp (argv[i], "-save-temps") == 0)
2821 save_temps_flag = 1;
2824 else if (strcmp (argv[i], "-specs") == 0)
2826 struct user_specs *user = (struct user_specs *)
2827 xmalloc (sizeof (struct user_specs));
2829 fatal ("argument to `-specs' is missing");
2831 user->next = (struct user_specs *)0;
2832 user->filename = argv[i];
2833 if (user_specs_tail)
2834 user_specs_tail->next = user;
2836 user_specs_head = user;
2837 user_specs_tail = user;
2839 else if (strncmp (argv[i], "-specs=", 7) == 0)
2841 struct user_specs *user = (struct user_specs *)
2842 xmalloc (sizeof (struct user_specs));
2843 if (strlen (argv[i]) == 7)
2844 fatal ("argument to `-specs=' is missing");
2846 user->next = (struct user_specs *)0;
2847 user->filename = argv[i]+7;
2848 if (user_specs_tail)
2849 user_specs_tail->next = user;
2851 user_specs_head = user;
2852 user_specs_tail = user;
2854 else if (argv[i][0] == '-' && argv[i][1] != 0)
2856 register char *p = &argv[i][1];
2857 register int c = *p;
2863 if (p[1] == 0 && i + 1 == argc)
2864 fatal ("argument to `-b' is missing");
2866 spec_machine = argv[++i];
2868 spec_machine = p + 1;
2870 warn_std_ptr = &warn_std;
2876 if (p[1] == 0 && i + 1 == argc)
2877 fatal ("argument to `-B' is missing");
2882 add_prefix (&exec_prefixes, value, NULL_PTR, 1, 0, &warn_B);
2883 add_prefix (&startfile_prefixes, value, NULL_PTR,
2885 add_prefix (&include_prefixes, concat (value, "include",
2887 NULL_PTR, 1, 0, NULL_PTR);
2889 /* As a kludge, if the arg is "[foo/]stageN/", just add
2890 "[foo/]include" to the include prefix. */
2892 int len = strlen (value);
2895 && (value[len - 8] == '/'
2896 || value[len - 8] == DIR_SEPARATOR)))
2897 && strncmp (value + len - 7, "stage", 5) == 0
2898 && ISDIGIT (value[len - 2])
2899 && (value[len - 1] == '/'
2900 || value[len - 1] == DIR_SEPARATOR))
2903 add_prefix (&include_prefixes, "include", NULL_PTR,
2907 char *string = xmalloc (len + 1);
2908 strncpy (string, value, len-7);
2909 strcpy (string+len-7, "include");
2910 add_prefix (&include_prefixes, string, NULL_PTR,
2919 case 'v': /* Print our subcommands and print versions. */
2921 /* If they do anything other than exactly `-v', don't set
2922 verbose_flag; rather, continue on to give the error. */
2930 if (p[1] == 0 && i + 1 == argc)
2931 fatal ("argument to `-V' is missing");
2933 spec_version = argv[++i];
2935 spec_version = p + 1;
2936 compiler_version = spec_version;
2937 warn_std_ptr = &warn_std;
2939 /* Validate the version number. Use the same checks
2940 done when inserting it into a spec.
2942 The format of the version string is
2943 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
2945 char *v = compiler_version;
2947 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
2948 while (! ISDIGIT (*v))
2951 if (v > compiler_version && v[-1] != '-')
2952 fatal ("invalid version number format");
2954 /* Set V after the first period. */
2955 while (ISDIGIT (*v))
2959 fatal ("invalid version number format");
2962 while (ISDIGIT (*v))
2965 if (*v != 0 && *v != ' ' && *v != '.' && *v != '-')
2966 fatal ("invalid version number format");
2982 #if defined(HAVE_EXECUTABLE_SUFFIX)
2987 /* Forward scan, just in case -S or -c is specified
2994 if (argv[j][0] == '-')
2996 if (SWITCH_CURTAILS_COMPILATION (argv[j][1])
3002 else if (skip = SWITCH_TAKES_ARG (argv[j][1]))
3003 j += skip - (argv[j][2] != 0);
3004 else if (skip = WORD_SWITCH_TAKES_ARG (argv[j] + 1))
3011 #if defined(HAVE_EXECUTABLE_SUFFIX) || defined(HAVE_OBJECT_SUFFIX)
3013 argv[i+1] = convert_filename (argv[i+1], ! have_c);
3015 argv[i] = convert_filename (argv[i], ! have_c);
3023 if (SWITCH_TAKES_ARG (c) > (p[1] != 0))
3024 i += SWITCH_TAKES_ARG (c) - (p[1] != 0);
3025 else if (WORD_SWITCH_TAKES_ARG (p))
3026 i += WORD_SWITCH_TAKES_ARG (p);
3036 if (have_c && have_o && lang_n_infiles > 1)
3037 fatal ("cannot specify -o with -c or -S and multiple compilations");
3039 /* Set up the search paths before we go looking for config files. */
3041 /* These come before the md prefixes so that we will find gcc's subcommands
3042 (such as cpp) rather than those of the host system. */
3043 /* Use 2 as fourth arg meaning try just the machine as a suffix,
3044 as well as trying the machine and the version. */
3046 add_prefix (&exec_prefixes, standard_exec_prefix, "BINUTILS",
3047 0, 2, warn_std_ptr);
3048 add_prefix (&exec_prefixes, standard_exec_prefix_1, "BINUTILS",
3049 0, 2, warn_std_ptr);
3052 add_prefix (&startfile_prefixes, standard_exec_prefix, "BINUTILS",
3053 0, 1, warn_std_ptr);
3054 add_prefix (&startfile_prefixes, standard_exec_prefix_1, "BINUTILS",
3055 0, 1, warn_std_ptr);
3057 tooldir_prefix = concat (tooldir_base_prefix, spec_machine,
3058 dir_separator_str, NULL_PTR);
3060 /* If tooldir is relative, base it on exec_prefixes. A relative
3061 tooldir lets us move the installed tree as a unit.
3063 If GCC_EXEC_PREFIX is defined, then we want to add two relative
3064 directories, so that we can search both the user specified directory
3065 and the standard place. */
3067 if (*tooldir_prefix != '/' && *tooldir_prefix != DIR_SEPARATOR)
3069 if (gcc_exec_prefix)
3071 char *gcc_exec_tooldir_prefix
3072 = concat (gcc_exec_prefix, spec_machine, dir_separator_str,
3073 spec_version, dir_separator_str, tooldir_prefix, NULL_PTR);
3075 add_prefix (&exec_prefixes,
3076 concat (gcc_exec_tooldir_prefix, "bin",
3077 dir_separator_str, NULL_PTR),
3078 NULL_PTR, 0, 0, NULL_PTR);
3079 add_prefix (&startfile_prefixes,
3080 concat (gcc_exec_tooldir_prefix, "lib",
3081 dir_separator_str, NULL_PTR),
3082 NULL_PTR, 0, 0, NULL_PTR);
3085 tooldir_prefix = concat (standard_exec_prefix, spec_machine,
3086 dir_separator_str, spec_version,
3087 dir_separator_str, tooldir_prefix, NULL_PTR);
3090 add_prefix (&exec_prefixes,
3091 concat (tooldir_prefix, "bin", dir_separator_str, NULL_PTR),
3092 "BINUTILS", 0, 0, NULL_PTR);
3093 add_prefix (&startfile_prefixes,
3094 concat (tooldir_prefix, "lib", dir_separator_str, NULL_PTR),
3095 "BINUTILS", 0, 0, NULL_PTR);
3097 /* More prefixes are enabled in main, after we read the specs file
3098 and determine whether this is cross-compilation or not. */
3101 /* Then create the space for the vectors and scan again. */
3103 switches = ((struct switchstr *)
3104 xmalloc ((n_switches + 1) * sizeof (struct switchstr)));
3105 infiles = (struct infile *) xmalloc ((n_infiles + 1) * sizeof (struct infile));
3108 last_language_n_infiles = -1;
3110 /* This, time, copy the text of each switch and store a pointer
3111 to the copy in the vector of switches.
3112 Store all the infiles in their vector. */
3114 for (i = 1; i < argc; i++)
3116 /* Just skip the switches that were handled by the preceding loop. */
3117 if (! strncmp (argv[i], "-Wa,", 4))
3119 else if (! strncmp (argv[i], "-Wp,", 4))
3121 else if (! strcmp (argv[i], "-print-search-dirs"))
3123 else if (! strcmp (argv[i], "-print-libgcc-file-name"))
3125 else if (! strncmp (argv[i], "-print-file-name=", 17))
3127 else if (! strncmp (argv[i], "-print-prog-name=", 17))
3129 else if (! strcmp (argv[i], "-print-multi-lib"))
3131 else if (! strcmp (argv[i], "-print-multi-directory"))
3133 else if (strcmp (argv[i], "-fhelp") == 0)
3137 /* Create a dummy input file, so that we can pass --help on to
3138 the various sub-processes. */
3139 infiles[n_infiles].language = "c";
3140 infiles[n_infiles++].name = "help-dummy";
3142 /* Preserve the --help switch so that it can be caught by the
3144 switches[n_switches].part1 = "--help";
3145 switches[n_switches].args = 0;
3146 switches[n_switches].live_cond = 0;
3147 switches[n_switches].valid = 0;
3152 else if (argv[i][0] == '+' && argv[i][1] == 'e')
3154 /* Compensate for the +e options to the C++ front-end;
3155 they're there simply for cfront call-compatibility. We do
3156 some magic in default_compilers to pass them down properly.
3157 Note we deliberately start at the `+' here, to avoid passing
3158 -e0 or -e1 down into the linker. */
3159 switches[n_switches].part1 = &argv[i][0];
3160 switches[n_switches].args = 0;
3161 switches[n_switches].live_cond = 0;
3162 switches[n_switches].valid = 0;
3165 else if (strncmp (argv[i], "-Wl,", 4) == 0)
3168 /* Split the argument at commas. */
3170 for (j = 4; argv[i][j]; j++)
3171 if (argv[i][j] == ',')
3173 infiles[n_infiles].language = "*";
3174 infiles[n_infiles++].name
3175 = save_string (argv[i] + prev, j - prev);
3178 /* Record the part after the last comma. */
3179 infiles[n_infiles].language = "*";
3180 infiles[n_infiles++].name = argv[i] + prev;
3182 else if (strcmp (argv[i], "-Xlinker") == 0)
3184 infiles[n_infiles].language = "*";
3185 infiles[n_infiles++].name = argv[++i];
3187 else if (strncmp (argv[i], "-l", 2) == 0)
3189 infiles[n_infiles].language = "*";
3190 infiles[n_infiles++].name = argv[i];
3192 else if (strcmp (argv[i], "-specs") == 0)
3194 else if (strncmp (argv[i], "-specs=", 7) == 0)
3196 /* -save-temps overrides -pipe, so that temp files are produced */
3197 else if (save_temps_flag && strcmp (argv[i], "-pipe") == 0)
3198 error ("Warning: -pipe ignored since -save-temps specified");
3199 else if (argv[i][0] == '-' && argv[i][1] != 0)
3201 register char *p = &argv[i][1];
3202 register int c = *p;
3206 if (p[1] == 0 && i + 1 == argc)
3207 fatal ("argument to `-x' is missing");
3209 spec_lang = argv[++i];
3212 if (! strcmp (spec_lang, "none"))
3213 /* Suppress the warning if -xnone comes after the last input
3214 file, because alternate command interfaces like g++ might
3215 find it useful to place -xnone after each input file. */
3218 last_language_n_infiles = n_infiles;
3221 switches[n_switches].part1 = p;
3222 /* Deal with option arguments in separate argv elements. */
3223 if ((SWITCH_TAKES_ARG (c) > (p[1] != 0))
3224 || WORD_SWITCH_TAKES_ARG (p))
3227 int n_args = WORD_SWITCH_TAKES_ARG (p);
3231 /* Count only the option arguments in separate argv elements. */
3232 n_args = SWITCH_TAKES_ARG (c) - (p[1] != 0);
3234 if (i + n_args >= argc)
3235 fatal ("argument to `-%s' is missing", p);
3236 switches[n_switches].args
3237 = (char **) xmalloc ((n_args + 1) * sizeof (char *));
3239 switches[n_switches].args[j++] = argv[++i];
3240 /* Null-terminate the vector. */
3241 switches[n_switches].args[j] = 0;
3243 else if (index (switches_need_spaces, c))
3245 /* On some systems, ld cannot handle some options without
3246 a space. So split the option from its argument. */
3247 char *part1 = (char *) xmalloc (2);
3251 switches[n_switches].part1 = part1;
3252 switches[n_switches].args = (char **) xmalloc (2 * sizeof (char *));
3253 switches[n_switches].args[0] = xmalloc (strlen (p));
3254 strcpy (switches[n_switches].args[0], &p[1]);
3255 switches[n_switches].args[1] = 0;
3258 switches[n_switches].args = 0;
3260 switches[n_switches].live_cond = 0;
3261 switches[n_switches].valid = 0;
3262 /* This is always valid, since gcc.c itself understands it. */
3263 if (!strcmp (p, "save-temps"))
3264 switches[n_switches].valid = 1;
3267 char ch = switches[n_switches].part1[0];
3268 if (ch == 'V' || ch == 'b' || ch == 'B')
3269 switches[n_switches].valid = 1;
3275 #ifdef HAVE_OBJECT_SUFFIX
3276 argv[i] = convert_filename (argv[i], 0);
3279 if (strcmp (argv[i], "-") != 0 && access (argv[i], R_OK) < 0)
3281 perror_with_name (argv[i]);
3286 infiles[n_infiles].language = spec_lang;
3287 infiles[n_infiles++].name = argv[i];
3292 if (n_infiles == last_language_n_infiles && spec_lang != 0)
3293 error ("Warning: `-x %s' after last input file has no effect", spec_lang);
3295 switches[n_switches].part1 = 0;
3296 infiles[n_infiles].name = 0;
3299 /* Process a spec string, accumulating and running commands. */
3301 /* These variables describe the input file name.
3302 input_file_number is the index on outfiles of this file,
3303 so that the output file name can be stored for later use by %o.
3304 input_basename is the start of the part of the input file
3305 sans all directory names, and basename_length is the number
3306 of characters starting there excluding the suffix .c or whatever. */
3308 char *input_filename;
3309 static int input_file_number;
3310 size_t input_filename_length;
3311 static int basename_length;
3312 static char *input_basename;
3313 static char *input_suffix;
3315 /* These are variables used within do_spec and do_spec_1. */
3317 /* Nonzero if an arg has been started and not yet terminated
3318 (with space, tab or newline). */
3319 static int arg_going;
3321 /* Nonzero means %d or %g has been seen; the next arg to be terminated
3322 is a temporary file name. */
3323 static int delete_this_arg;
3325 /* Nonzero means %w has been seen; the next arg to be terminated
3326 is the output file name of this compilation. */
3327 static int this_is_output_file;
3329 /* Nonzero means %s has been seen; the next arg to be terminated
3330 is the name of a library file and we should try the standard
3331 search dirs for it. */
3332 static int this_is_library_file;
3334 /* Nonzero means that the input of this command is coming from a pipe. */
3335 static int input_from_pipe;
3337 /* Process the spec SPEC and run the commands specified therein.
3338 Returns 0 if the spec is successfully processed; -1 if failed. */
3348 delete_this_arg = 0;
3349 this_is_output_file = 0;
3350 this_is_library_file = 0;
3351 input_from_pipe = 0;
3353 value = do_spec_1 (spec, 0, NULL_PTR);
3355 /* Force out any unfinished command.
3356 If -pipe, this forces out the last command if it ended in `|'. */
3359 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3362 if (argbuf_index > 0)
3369 /* Process the sub-spec SPEC as a portion of a larger spec.
3370 This is like processing a whole spec except that we do
3371 not initialize at the beginning and we do not supply a
3372 newline by default at the end.
3373 INSWITCH nonzero means don't process %-sequences in SPEC;
3374 in this case, % is treated as an ordinary character.
3375 This is used while substituting switches.
3376 INSWITCH nonzero also causes SPC not to terminate an argument.
3378 Value is zero unless a line was finished
3379 and the command on that line reported an error. */
3382 do_spec_1 (spec, inswitch, soft_matched_part)
3385 char *soft_matched_part;
3387 register char *p = spec;
3394 /* If substituting a switch, treat all chars like letters.
3395 Otherwise, NL, SPC, TAB and % are special. */
3396 switch (inswitch ? 'a' : c)
3399 /* End of line: finish any pending argument,
3400 then run the pending command if one has been started. */
3403 obstack_1grow (&obstack, 0);
3404 string = obstack_finish (&obstack);
3405 if (this_is_library_file)
3406 string = find_file (string);
3407 store_arg (string, delete_this_arg, this_is_output_file);
3408 if (this_is_output_file)
3409 outfiles[input_file_number] = string;
3413 if (argbuf_index > 0 && !strcmp (argbuf[argbuf_index - 1], "|"))
3415 for (i = 0; i < n_switches; i++)
3416 if (!strcmp (switches[i].part1, "pipe"))
3419 /* A `|' before the newline means use a pipe here,
3420 but only if -pipe was specified.
3421 Otherwise, execute now and don't pass the `|' as an arg. */
3424 input_from_pipe = 1;
3425 switches[i].valid = 1;
3432 if (argbuf_index > 0)
3438 /* Reinitialize for a new command, and for a new argument. */
3441 delete_this_arg = 0;
3442 this_is_output_file = 0;
3443 this_is_library_file = 0;
3444 input_from_pipe = 0;
3448 /* End any pending argument. */
3451 obstack_1grow (&obstack, 0);
3452 string = obstack_finish (&obstack);
3453 if (this_is_library_file)
3454 string = find_file (string);
3455 store_arg (string, delete_this_arg, this_is_output_file);
3456 if (this_is_output_file)
3457 outfiles[input_file_number] = string;
3461 obstack_1grow (&obstack, c);
3467 /* Space or tab ends an argument if one is pending. */
3470 obstack_1grow (&obstack, 0);
3471 string = obstack_finish (&obstack);
3472 if (this_is_library_file)
3473 string = find_file (string);
3474 store_arg (string, delete_this_arg, this_is_output_file);
3475 if (this_is_output_file)
3476 outfiles[input_file_number] = string;
3478 /* Reinitialize for a new argument. */
3480 delete_this_arg = 0;
3481 this_is_output_file = 0;
3482 this_is_library_file = 0;
3489 fatal ("Invalid specification! Bug in cc.");
3492 obstack_grow (&obstack, input_basename, basename_length);
3497 delete_this_arg = 2;
3500 /* Dump out the directories specified with LIBRARY_PATH,
3501 followed by the absolute directories
3502 that we search for startfiles. */
3505 struct prefix_list *pl = startfile_prefixes.plist;
3506 size_t bufsize = 100;
3507 char *buffer = (char *) xmalloc (bufsize);
3510 for (; pl; pl = pl->next)
3512 #ifdef RELATIVE_PREFIX_NOT_LINKDIR
3513 /* Used on systems which record the specified -L dirs
3514 and use them to search for dynamic linking. */
3515 /* Relative directories always come from -B,
3516 and it is better not to use them for searching
3517 at run time. In particular, stage1 loses */
3518 if (pl->prefix[0] != '/' && pl->prefix[0] != DIR_SEPARATOR)
3521 /* Try subdirectory if there is one. */
3522 if (multilib_dir != NULL)
3526 if (strlen (pl->prefix) + strlen (machine_suffix)
3528 bufsize = (strlen (pl->prefix)
3529 + strlen (machine_suffix)) * 2 + 1;
3530 buffer = (char *) xrealloc (buffer, bufsize);
3531 strcpy (buffer, pl->prefix);
3532 strcat (buffer, machine_suffix);
3533 if (is_directory (buffer, multilib_dir, 1))
3535 do_spec_1 ("-L", 0, NULL_PTR);
3536 #ifdef SPACE_AFTER_L_OPTION
3537 do_spec_1 (" ", 0, NULL_PTR);
3539 do_spec_1 (buffer, 1, NULL_PTR);
3540 do_spec_1 (multilib_dir, 1, NULL_PTR);
3541 /* Make this a separate argument. */
3542 do_spec_1 (" ", 0, NULL_PTR);
3545 if (!pl->require_machine_suffix)
3547 if (is_directory (pl->prefix, multilib_dir, 1))
3549 do_spec_1 ("-L", 0, NULL_PTR);
3550 #ifdef SPACE_AFTER_L_OPTION
3551 do_spec_1 (" ", 0, NULL_PTR);
3553 do_spec_1 (pl->prefix, 1, NULL_PTR);
3554 do_spec_1 (multilib_dir, 1, NULL_PTR);
3555 /* Make this a separate argument. */
3556 do_spec_1 (" ", 0, NULL_PTR);
3562 if (is_directory (pl->prefix, machine_suffix, 1))
3564 do_spec_1 ("-L", 0, NULL_PTR);
3565 #ifdef SPACE_AFTER_L_OPTION
3566 do_spec_1 (" ", 0, NULL_PTR);
3568 do_spec_1 (pl->prefix, 1, NULL_PTR);
3569 /* Remove slash from machine_suffix. */
3570 if (strlen (machine_suffix) >= bufsize)
3571 bufsize = strlen (machine_suffix) * 2 + 1;
3572 buffer = (char *) xrealloc (buffer, bufsize);
3573 strcpy (buffer, machine_suffix);
3574 idx = strlen (buffer);
3575 if (buffer[idx - 1] == '/'
3576 || buffer[idx - 1] == DIR_SEPARATOR)
3577 buffer[idx - 1] = 0;
3578 do_spec_1 (buffer, 1, NULL_PTR);
3579 /* Make this a separate argument. */
3580 do_spec_1 (" ", 0, NULL_PTR);
3583 if (!pl->require_machine_suffix)
3585 if (is_directory (pl->prefix, "", 1))
3587 do_spec_1 ("-L", 0, NULL_PTR);
3588 #ifdef SPACE_AFTER_L_OPTION
3589 do_spec_1 (" ", 0, NULL_PTR);
3591 /* Remove slash from pl->prefix. */
3592 if (strlen (pl->prefix) >= bufsize)
3593 bufsize = strlen (pl->prefix) * 2 + 1;
3594 buffer = (char *) xrealloc (buffer, bufsize);
3595 strcpy (buffer, pl->prefix);
3596 idx = strlen (buffer);
3597 if (buffer[idx - 1] == '/'
3598 || buffer[idx - 1] == DIR_SEPARATOR)
3599 buffer[idx - 1] = 0;
3600 do_spec_1 (buffer, 1, NULL_PTR);
3601 /* Make this a separate argument. */
3602 do_spec_1 (" ", 0, NULL_PTR);
3611 /* {...:%efoo} means report an error with `foo' as error message
3612 and don't execute any more commands for this file. */
3616 while (*p != 0 && *p != '\n') p++;
3617 buf = (char *) alloca (p - q + 1);
3618 strncpy (buf, q, p - q);
3628 if (save_temps_flag)
3630 obstack_grow (&obstack, input_basename, basename_length);
3631 delete_this_arg = 0;
3635 #ifdef MKTEMP_EACH_FILE
3636 /* ??? This has a problem: the total number of
3637 values mktemp can return is limited.
3638 That matters for the names of object files.
3639 In 2.4, do something about that. */
3640 struct temp_name *t;
3644 if (p[0] == '%' && p[1] == 'O')
3646 /* We don't support extra suffix characters after %O. */
3647 if (*p == '.' || ISALPHA (*p))
3649 suffix = OBJECT_SUFFIX;
3650 suffix_length = strlen (OBJECT_SUFFIX);
3655 while (*p == '.' || ISALPHA (*p))
3657 suffix_length = p - suffix;
3660 /* See if we already have an association of %g/%u/%U and
3662 for (t = temp_names; t; t = t->next)
3663 if (t->length == suffix_length
3664 && strncmp (t->suffix, suffix, suffix_length) == 0
3665 && t->unique == (c != 'g'))
3668 /* Make a new association if needed. %u requires one. */
3669 if (t == 0 || c == 'u')
3673 t = (struct temp_name *) xmalloc (sizeof (struct temp_name));
3674 t->next = temp_names;
3677 t->length = suffix_length;
3678 t->suffix = save_string (suffix, suffix_length);
3679 t->unique = (c != 'g');
3680 temp_filename = make_temp_file (t->suffix);
3681 temp_filename_length = strlen (temp_filename);
3682 t->filename = temp_filename;
3683 t->filename_length = temp_filename_length;
3686 obstack_grow (&obstack, t->filename, t->filename_length);
3687 delete_this_arg = 1;
3689 obstack_grow (&obstack, temp_filename, temp_filename_length);
3690 if (c == 'u' || c == 'U')
3696 sprintf (buff, "%d", unique);
3697 obstack_grow (&obstack, buff, strlen (buff));
3700 delete_this_arg = 1;
3706 obstack_grow (&obstack, input_filename, input_filename_length);
3712 struct prefix_list *pl = include_prefixes.plist;
3714 if (gcc_exec_prefix)
3716 do_spec_1 ("-iprefix", 1, NULL_PTR);
3717 /* Make this a separate argument. */
3718 do_spec_1 (" ", 0, NULL_PTR);
3719 do_spec_1 (gcc_exec_prefix, 1, NULL_PTR);
3720 do_spec_1 (" ", 0, NULL_PTR);
3723 for (; pl; pl = pl->next)
3725 do_spec_1 ("-isystem", 1, NULL_PTR);
3726 /* Make this a separate argument. */
3727 do_spec_1 (" ", 0, NULL_PTR);
3728 do_spec_1 (pl->prefix, 1, NULL_PTR);
3729 do_spec_1 (" ", 0, NULL_PTR);
3736 int max = n_infiles;
3737 #ifdef LANG_SPECIFIC_DRIVER
3738 max += lang_specific_extra_outfiles;
3740 for (i = 0; i < max; i++)
3742 store_arg (outfiles[i], 0, 0);
3747 obstack_grow (&obstack, OBJECT_SUFFIX, strlen (OBJECT_SUFFIX));
3752 this_is_library_file = 1;
3756 this_is_output_file = 1;
3761 int cur_index = argbuf_index;
3762 /* Handle the {...} following the %W. */
3765 p = handle_braces (p + 1);
3768 /* If any args were output, mark the last one for deletion
3770 if (argbuf_index != cur_index)
3771 record_temp_file (argbuf[argbuf_index - 1], 0, 1);
3775 /* %x{OPTION} records OPTION for %X to output. */
3781 /* Skip past the option value and make a copy. */
3786 string = save_string (p1 + 1, p - p1 - 2);
3788 /* See if we already recorded this option. */
3789 for (i = 0; i < n_linker_options; i++)
3790 if (! strcmp (string, linker_options[i]))
3796 /* This option is new; add it. */
3797 add_linker_option (string, strlen (string));
3801 /* Dump out the options accumulated previously using %x. */
3803 for (i = 0; i < n_linker_options; i++)
3805 do_spec_1 (linker_options[i], 1, NULL_PTR);
3806 /* Make each accumulated option a separate argument. */
3807 do_spec_1 (" ", 0, NULL_PTR);
3811 /* Dump out the options accumulated previously using -Wa,. */
3813 for (i = 0; i < n_assembler_options; i++)
3815 do_spec_1 (assembler_options[i], 1, NULL_PTR);
3816 /* Make each accumulated option a separate argument. */
3817 do_spec_1 (" ", 0, NULL_PTR);
3821 /* Dump out the options accumulated previously using -Wp,. */
3823 for (i = 0; i < n_preprocessor_options; i++)
3825 do_spec_1 (preprocessor_options[i], 1, NULL_PTR);
3826 /* Make each accumulated option a separate argument. */
3827 do_spec_1 (" ", 0, NULL_PTR);
3831 /* Here are digits and numbers that just process
3832 a certain constant string as a spec. */
3835 value = do_spec_1 (cc1_spec, 0, NULL_PTR);
3841 value = do_spec_1 (cc1plus_spec, 0, NULL_PTR);
3847 value = do_spec_1 (asm_spec, 0, NULL_PTR);
3853 value = do_spec_1 (asm_final_spec, 0, NULL_PTR);
3859 value = do_spec_1 (signed_char_spec, 0, NULL_PTR);
3865 value = do_spec_1 (cpp_spec, 0, NULL_PTR);
3871 value = do_spec_1 (endfile_spec, 0, NULL_PTR);
3877 value = do_spec_1 (link_spec, 0, NULL_PTR);
3883 value = do_spec_1 (lib_spec, 0, NULL_PTR);
3889 value = do_spec_1 (libgcc_spec, 0, NULL_PTR);
3896 char *x = (char *) alloca (strlen (cpp_predefines) + 1);
3900 /* Copy all of the -D options in CPP_PREDEFINES into BUF. */
3904 if (! strncmp (y, "-D", 2))
3905 /* Copy the whole option. */
3906 while (*y && *y != ' ' && *y != '\t')
3908 else if (*y == ' ' || *y == '\t')
3909 /* Copy whitespace to the result. */
3911 /* Don't copy other options. */
3918 value = do_spec_1 (buf, 0, NULL_PTR);
3926 char *x = (char *) alloca (strlen (cpp_predefines) * 4 + 1);
3930 /* Copy all of CPP_PREDEFINES into BUF,
3931 but put __ after every -D and at the end of each arg. */
3935 if (! strncmp (y, "-D", 2))
3943 || (*(y+1) != '_' && ! ISUPPER (*(y+1))))
3945 /* Stick __ at front of macro name. */
3948 /* Arrange to stick __ at the end as well. */
3952 /* Copy the macro name. */
3953 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3962 /* Copy the value given, if any. */
3963 while (*y && *y != ' ' && *y != '\t')
3966 else if (*y == ' ' || *y == '\t')
3967 /* Copy whitespace to the result. */
3969 /* Don't copy -A options */
3975 /* Copy all of CPP_PREDEFINES into BUF,
3976 but put __ after every -D. */
3980 if (! strncmp (y, "-D", 2))
3985 || (*(y+1) != '_' && ! ISUPPER (*(y+1))))
3987 /* Stick -D__ at front of macro name. */
3993 /* Copy the macro name. */
3994 while (*y && *y != '=' && *y != ' ' && *y != '\t')
3997 /* Copy the value given, if any. */
3998 while (*y && *y != ' ' && *y != '\t')
4003 /* Do not copy this macro - we have just done it before */
4004 while (*y && *y != ' ' && *y != '\t')
4008 else if (*y == ' ' || *y == '\t')
4009 /* Copy whitespace to the result. */
4011 /* Don't copy -A options */
4017 /* Copy all of the -A options in CPP_PREDEFINES into BUF. */
4021 if (! strncmp (y, "-A", 2))
4022 /* Copy the whole option. */
4023 while (*y && *y != ' ' && *y != '\t')
4025 else if (*y == ' ' || *y == '\t')
4026 /* Copy whitespace to the result. */
4028 /* Don't copy other options. */
4035 value = do_spec_1 (buf, 0, NULL_PTR);
4042 value = do_spec_1 (startfile_spec, 0, NULL_PTR);
4047 /* Here we define characters other than letters and digits. */
4050 p = handle_braces (p);
4056 obstack_1grow (&obstack, '%');
4060 do_spec_1 (soft_matched_part, 1, NULL_PTR);
4061 do_spec_1 (" ", 0, NULL_PTR);
4064 /* Process a string found as the value of a spec given by name.
4065 This feature allows individual machine descriptions
4066 to add and use their own specs.
4067 %[...] modifies -D options the way %P does;
4068 %(...) uses the spec unmodified. */
4070 error ("Warning: use of obsolete %%[ operator in specs");
4074 struct spec_list *sl;
4077 /* The string after the S/P is the name of a spec that is to be
4079 while (*p && *p != ')' && *p != ']')
4082 /* See if it's in the list */
4083 for (len = p - name, sl = specs; sl; sl = sl->next)
4084 if (sl->name_len == len && !strncmp (sl->name, name, len))
4086 name = *(sl->ptr_spec);
4088 fprintf (stderr, "Processing spec %c%s%c, which is '%s'\n",
4089 c, sl->name, (c == '(') ? ')' : ']', name);
4098 value = do_spec_1 (name, 0, NULL_PTR);
4104 char *x = (char *) alloca (strlen (name) * 2 + 1);
4109 /* Copy all of NAME into BUF, but put __ after
4110 every -D and at the end of each arg, */
4113 if (! strncmp (y, "-D", 2))
4123 else if (flag && (*y == ' ' || *y == '\t' || *y == '='
4124 || *y == '}' || *y == 0))
4137 value = do_spec_1 (buf, 0, NULL_PTR);
4143 /* Discard the closing paren or bracket. */
4151 int c1 = *p++; /* Select first or second version number. */
4152 char *v = compiler_version;
4155 /* The format of the version string is
4156 ([^0-9]*-)?[0-9]+[.][0-9]+([.][0-9]+)?([- ].*)? */
4158 /* Ignore leading non-digits. i.e. "foo-" in "foo-2.7.2". */
4159 while (! ISDIGIT (*v))
4161 if (v > compiler_version && v[-1] != '-')
4164 /* If desired, advance to second version number. */
4167 /* Set V after the first period. */
4168 while (ISDIGIT (*v))
4175 /* Set Q at the next period or at the end. */
4177 while (ISDIGIT (*q))
4179 if (*q != 0 && *q != ' ' && *q != '.' && *q != '-')
4182 /* Put that part into the command. */
4183 obstack_grow (&obstack, v, q - v);
4189 if (input_from_pipe)
4190 do_spec_1 ("-", 0, NULL_PTR);
4199 /* Backslash: treat next character as ordinary. */
4204 /* Ordinary character: put it into the current argument. */
4205 obstack_1grow (&obstack, c);
4209 return 0; /* End of string */
4212 /* Return 0 if we call do_spec_1 and that returns -1. */
4218 char *filter, *body = NULL, *endbody;
4222 int include_blanks = 1;
4225 /* A '^' after the open-brace means to not give blanks before args. */
4226 include_blanks = 0, ++p;
4229 /* A `|' after the open-brace means,
4230 if the test fails, output a single minus sign rather than nothing.
4231 This is used in %{|!pipe:...}. */
4235 negate = suffix = 0;
4238 /* A `!' after the open-brace negates the condition:
4239 succeed if the specified switch is not present. */
4243 /* A `.' after the open-brace means test against the current suffix. */
4253 while (*p != ':' && *p != '}' && *p != '|') p++;
4255 if (*p == '|' && pipe_p)
4262 register int count = 1;
4263 register char *q = p;
4265 while (*q++ != ':') continue;
4281 body = p, endbody = p+1;
4286 int found = (input_suffix != 0
4287 && strlen (input_suffix) == p - filter
4288 && strncmp (input_suffix, filter, p - filter) == 0);
4294 && do_spec_1 (save_string (body, endbody-body-1), 0, NULL_PTR) < 0)
4297 else if (p[-1] == '*' && p[0] == '}')
4299 /* Substitute all matching switches as separate args. */
4302 for (i = 0; i < n_switches; i++)
4303 if (!strncmp (switches[i].part1, filter, p - filter)
4304 && check_live_switch (i, p - filter))
4305 give_switch (i, 0, include_blanks);
4309 /* Test for presence of the specified switch. */
4313 /* If name specified ends in *, as in {x*:...},
4314 check for %* and handle that case. */
4315 if (p[-1] == '*' && !negate)
4320 /* First see whether we have %*. */
4324 if (*r == '%' && r[1] == '*')
4328 /* If we do, handle that case. */
4331 /* Substitute all matching switches as separate args.
4332 But do this by substituting for %*
4333 in the text that follows the colon. */
4335 unsigned hard_match_len = p - filter - 1;
4336 char *string = save_string (body, endbody - body - 1);
4338 for (i = 0; i < n_switches; i++)
4339 if (!strncmp (switches[i].part1, filter, hard_match_len)
4340 && check_live_switch (i, -1))
4342 do_spec_1 (string, 0, &switches[i].part1[hard_match_len]);
4343 /* Pass any arguments this switch has. */
4344 give_switch (i, 1, 1);
4347 /* We didn't match. Try again. */
4354 /* If name specified ends in *, as in {x*:...},
4355 check for presence of any switch name starting with x. */
4358 for (i = 0; i < n_switches; i++)
4360 unsigned hard_match_len = p - filter - 1;
4362 if (!strncmp (switches[i].part1, filter, hard_match_len)
4363 && check_live_switch (i, hard_match_len))
4369 /* Otherwise, check for presence of exact name specified. */
4372 for (i = 0; i < n_switches; i++)
4374 if (!strncmp (switches[i].part1, filter, p - filter)
4375 && switches[i].part1[p - filter] == 0
4376 && check_live_switch (i, -1))
4384 /* If it is as desired (present for %{s...}, absent for %{!s...})
4385 then substitute either the switch or the specified
4386 conditional text. */
4387 if (present != negate)
4391 give_switch (i, 0, include_blanks);
4395 if (do_spec_1 (save_string (body, endbody - body - 1),
4402 /* Here if a %{|...} conditional fails: output a minus sign,
4403 which means "standard output" or "standard input". */
4404 do_spec_1 ("-", 0, NULL_PTR);
4409 /* We didn't match; try again. */
4416 /* Return 0 iff switch number SWITCHNUM is obsoleted by a later switch
4417 on the command line. PREFIX_LENGTH is the length of XXX in an {XXX*}
4418 spec, or -1 if either exact match or %* is used.
4420 A -O switch is obsoleted by a later -O switch. A -f, -m, or -W switch
4421 whose value does not begin with "no-" is obsoleted by the same value
4422 with the "no-", similarly for a switch with the "no-" prefix. */
4425 check_live_switch (switchnum, prefix_length)
4429 char *name = switches[switchnum].part1;
4432 /* In the common case of {<at-most-one-letter>*}, a negating
4433 switch would always match, so ignore that case. We will just
4434 send the conflicting switches to the compiler phase. */
4435 if (prefix_length >= 0 && prefix_length <= 1)
4438 /* If we already processed this switch and determined if it was
4439 live or not, return our past determination. */
4440 if (switches[switchnum].live_cond != 0)
4441 return switches[switchnum].live_cond > 0;
4443 /* Now search for duplicate in a manner that depends on the name. */
4447 for (i = switchnum + 1; i < n_switches; i++)
4448 if (switches[i].part1[0] == 'O')
4450 switches[switchnum].valid = 1;
4451 switches[switchnum].live_cond = -1;
4456 case 'W': case 'f': case 'm':
4457 if (! strncmp (name + 1, "no-", 3))
4459 /* We have Xno-YYY, search for XYYY. */
4460 for (i = switchnum + 1; i < n_switches; i++)
4461 if (switches[i].part1[0] == name[0]
4462 && ! strcmp (&switches[i].part1[1], &name[4]))
4464 switches[switchnum].valid = 1;
4465 switches[switchnum].live_cond = -1;
4471 /* We have XYYY, search for Xno-YYY. */
4472 for (i = switchnum + 1; i < n_switches; i++)
4473 if (switches[i].part1[0] == name[0]
4474 && switches[i].part1[1] == 'n'
4475 && switches[i].part1[2] == 'o'
4476 && switches[i].part1[3] == '-'
4477 && !strcmp (&switches[i].part1[4], &name[1]))
4479 switches[switchnum].valid = 1;
4480 switches[switchnum].live_cond = -1;
4487 /* Otherwise the switch is live. */
4488 switches[switchnum].live_cond = 1;
4492 /* Pass a switch to the current accumulating command
4493 in the same form that we received it.
4494 SWITCHNUM identifies the switch; it is an index into
4495 the vector of switches gcc received, which is `switches'.
4496 This cannot fail since it never finishes a command line.
4498 If OMIT_FIRST_WORD is nonzero, then we omit .part1 of the argument.
4500 If INCLUDE_BLANKS is nonzero, then we include blanks before each argument
4504 give_switch (switchnum, omit_first_word, include_blanks)
4506 int omit_first_word;
4509 if (!omit_first_word)
4511 do_spec_1 ("-", 0, NULL_PTR);
4512 do_spec_1 (switches[switchnum].part1, 1, NULL_PTR);
4515 if (switches[switchnum].args != 0)
4518 for (p = switches[switchnum].args; *p; p++)
4521 do_spec_1 (" ", 0, NULL_PTR);
4522 do_spec_1 (*p, 1, NULL_PTR);
4526 do_spec_1 (" ", 0, NULL_PTR);
4527 switches[switchnum].valid = 1;
4530 /* Search for a file named NAME trying various prefixes including the
4531 user's -B prefix and some standard ones.
4532 Return the absolute file name found. If nothing is found, return NAME. */
4540 /* Try multilib_dir if it is defined. */
4541 if (multilib_dir != NULL)
4545 try = (char *) alloca (strlen (multilib_dir) + strlen (name) + 2);
4546 strcpy (try, multilib_dir);
4547 strcat (try, dir_separator_str);
4550 newname = find_a_file (&startfile_prefixes, try, R_OK);
4552 /* If we don't find it in the multi library dir, then fall
4553 through and look for it in the normal places. */
4554 if (newname != NULL)
4558 newname = find_a_file (&startfile_prefixes, name, R_OK);
4559 return newname ? newname : name;
4562 /* Determine whether a directory exists. If LINKER, return 0 for
4563 certain fixed names not needed by the linker. If not LINKER, it is
4564 only important to return 0 if the host machine has a small ARG_MAX
4568 is_directory (path1, path2, linker)
4573 int len1 = strlen (path1);
4574 int len2 = strlen (path2);
4575 char *path = (char *) alloca (3 + len1 + len2);
4579 #ifndef SMALL_ARG_MAX
4584 /* Construct the path from the two parts. Ensure the string ends with "/.".
4585 The resulting path will be a directory even if the given path is a
4587 memcpy (path, path1, len1);
4588 memcpy (path + len1, path2, len2);
4589 cp = path + len1 + len2;
4590 if (cp[-1] != '/' && cp[-1] != DIR_SEPARATOR)
4591 *cp++ = DIR_SEPARATOR;
4595 /* Exclude directories that the linker is known to search. */
4598 && strcmp (path, concat (dir_separator_str, "lib",
4599 dir_separator_str, ".", NULL_PTR)) == 0)
4601 && strcmp (path, concat (dir_separator_str, "usr",
4602 dir_separator_str, "lib",
4603 dir_separator_str, ".", NULL_PTR)) == 0)))
4606 return (stat (path, &st) >= 0 && S_ISDIR (st.st_mode));
4609 /* On fatal signals, delete all the temporary files. */
4612 fatal_error (signum)
4615 signal (signum, SIG_DFL);
4616 delete_failure_queue ();
4617 delete_temp_files ();
4618 /* Get the same signal again, this time not handled,
4619 so its normal effect occurs. */
4620 kill (getpid (), signum);
4631 int linker_was_run = 0;
4632 char *explicit_link_files;
4635 struct user_specs *uptr;
4637 p = argv[0] + strlen (argv[0]);
4638 while (p != argv[0] && p[-1] != '/' && p[-1] != DIR_SEPARATOR) --p;
4641 if (signal (SIGINT, SIG_IGN) != SIG_IGN)
4642 signal (SIGINT, fatal_error);
4644 if (signal (SIGHUP, SIG_IGN) != SIG_IGN)
4645 signal (SIGHUP, fatal_error);
4647 if (signal (SIGTERM, SIG_IGN) != SIG_IGN)
4648 signal (SIGTERM, fatal_error);
4650 if (signal (SIGPIPE, SIG_IGN) != SIG_IGN)
4651 signal (SIGPIPE, fatal_error);
4655 argbuf = (char **) xmalloc (argbuf_length * sizeof (char *));
4657 obstack_init (&obstack);
4659 /* Build multilib_select, et. al from the separate lines that make up each
4660 multilib selection. */
4662 char **q = multilib_raw;
4665 obstack_init (&multilib_obstack);
4666 while ((p = *q++) != (char *) 0)
4667 obstack_grow (&multilib_obstack, p, strlen (p));
4669 obstack_1grow (&multilib_obstack, 0);
4670 multilib_select = obstack_finish (&multilib_obstack);
4672 q = multilib_matches_raw;
4673 while ((p = *q++) != (char *) 0)
4674 obstack_grow (&multilib_obstack, p, strlen (p));
4676 obstack_1grow (&multilib_obstack, 0);
4677 multilib_matches = obstack_finish (&multilib_obstack);
4681 i < sizeof (multilib_defaults_raw) / sizeof (multilib_defaults_raw[0]);
4685 obstack_1grow (&multilib_obstack, ' ');
4686 obstack_grow (&multilib_obstack,
4687 multilib_defaults_raw[i],
4688 strlen (multilib_defaults_raw[i]));
4692 obstack_1grow (&multilib_obstack, 0);
4693 multilib_defaults = obstack_finish (&multilib_obstack);
4696 /* Set up to remember the pathname of gcc and any options
4697 needed for collect. We use argv[0] instead of programname because
4698 we need the complete pathname. */
4699 obstack_init (&collect_obstack);
4700 obstack_grow (&collect_obstack, "COLLECT_GCC=", sizeof ("COLLECT_GCC=")-1);
4701 obstack_grow (&collect_obstack, argv[0], strlen (argv[0])+1);
4702 putenv (obstack_finish (&collect_obstack));
4704 #ifdef INIT_ENVIRONMENT
4705 /* Set up any other necessary machine specific environment variables. */
4706 putenv (INIT_ENVIRONMENT);
4709 /* Choose directory for temp files. */
4711 #ifndef MKTEMP_EACH_FILE
4712 temp_filename = choose_temp_base ();
4713 temp_filename_length = strlen (temp_filename);
4716 /* Make a table of what switches there are (switches, n_switches).
4717 Make a table of specified input files (infiles, n_infiles).
4718 Decode switches that are handled locally. */
4720 process_command (argc, argv);
4725 /* Build COLLECT_GCC_OPTIONS to have all of the options specified to
4727 obstack_grow (&collect_obstack, "COLLECT_GCC_OPTIONS=",
4728 sizeof ("COLLECT_GCC_OPTIONS=")-1);
4731 for (i = 0; i < n_switches; i++)
4736 obstack_grow (&collect_obstack, " ", 1);
4739 obstack_grow (&collect_obstack, "'-", 2);
4740 q = switches[i].part1;
4741 while ((p = index (q,'\'')))
4743 obstack_grow (&collect_obstack, q, p-q);
4744 obstack_grow (&collect_obstack, "'\\''", 4);
4747 obstack_grow (&collect_obstack, q, strlen (q));
4748 obstack_grow (&collect_obstack, "'", 1);
4750 for (args = switches[i].args; args && *args; args++)
4752 obstack_grow (&collect_obstack, " '", 2);
4754 while ((p = index (q,'\'')))
4756 obstack_grow (&collect_obstack, q, p-q);
4757 obstack_grow (&collect_obstack, "'\\''", 4);
4760 obstack_grow (&collect_obstack, q, strlen (q));
4761 obstack_grow (&collect_obstack, "'", 1);
4764 obstack_grow (&collect_obstack, "\0", 1);
4765 putenv (obstack_finish (&collect_obstack));
4768 /* Initialize the vector of specs to just the default.
4769 This means one element containing 0s, as a terminator. */
4771 compilers = (struct compiler *) xmalloc (sizeof default_compilers);
4772 bcopy ((char *) default_compilers, (char *) compilers,
4773 sizeof default_compilers);
4774 n_compilers = n_default_compilers;
4776 /* Read specs from a file if there is one. */
4778 machine_suffix = concat (spec_machine, dir_separator_str,
4779 spec_version, dir_separator_str, NULL_PTR);
4780 just_machine_suffix = concat (spec_machine, dir_separator_str, NULL_PTR);
4782 specs_file = find_a_file (&startfile_prefixes, "specs", R_OK);
4783 /* Read the specs file unless it is a default one. */
4784 if (specs_file != 0 && strcmp (specs_file, "specs"))
4785 read_specs (specs_file, TRUE);
4789 /* We need to check standard_exec_prefix/just_machine_suffix/specs
4790 for any override of as, ld and libraries. */
4791 specs_file = (char *) alloca (strlen (standard_exec_prefix)
4792 + strlen (just_machine_suffix)
4793 + sizeof ("specs"));
4795 strcpy (specs_file, standard_exec_prefix);
4796 strcat (specs_file, just_machine_suffix);
4797 strcat (specs_file, "specs");
4798 if (access (specs_file, R_OK) == 0)
4799 read_specs (specs_file, TRUE);
4801 /* Process any user specified specs in the order given on the command
4803 for (uptr = user_specs_head; uptr; uptr = uptr->next)
4805 char *filename = find_a_file (&startfile_prefixes, uptr->filename, R_OK);
4806 read_specs (filename ? filename : uptr->filename, FALSE);
4809 /* If not cross-compiling, look for startfiles in the standard places. */
4810 /* The fact that these are done here, after reading the specs file,
4811 means that it cannot be found in these directories.
4812 But that's okay. It should never be there anyway. */
4813 if (*cross_compile == '0')
4815 #ifdef MD_EXEC_PREFIX
4816 add_prefix (&exec_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4817 add_prefix (&startfile_prefixes, md_exec_prefix, "GCC", 0, 0, NULL_PTR);
4820 #ifdef MD_STARTFILE_PREFIX
4821 add_prefix (&startfile_prefixes, md_startfile_prefix, "GCC",
4825 #ifdef MD_STARTFILE_PREFIX_1
4826 add_prefix (&startfile_prefixes, md_startfile_prefix_1, "GCC",
4830 /* If standard_startfile_prefix is relative, base it on
4831 standard_exec_prefix. This lets us move the installed tree
4832 as a unit. If GCC_EXEC_PREFIX is defined, base
4833 standard_startfile_prefix on that as well. */
4834 if (*standard_startfile_prefix == '/'
4835 || *standard_startfile_prefix == DIR_SEPARATOR
4836 || *standard_startfile_prefix == '$'
4838 /* Check for disk name on MS-DOS-based systems. */
4839 || (standard_startfile_prefix[1] == ':'
4840 && (standard_startfile_prefix[2] == DIR_SEPARATOR
4841 || standard_startfile_prefix[2] == '/'))
4844 add_prefix (&startfile_prefixes, standard_startfile_prefix, "BINUTILS",
4848 if (gcc_exec_prefix)
4849 add_prefix (&startfile_prefixes,
4850 concat (gcc_exec_prefix, machine_suffix,
4851 standard_startfile_prefix, NULL_PTR),
4852 NULL_PTR, 0, 0, NULL_PTR);
4853 add_prefix (&startfile_prefixes,
4854 concat (standard_exec_prefix,
4856 standard_startfile_prefix, NULL_PTR),
4857 NULL_PTR, 0, 0, NULL_PTR);
4860 add_prefix (&startfile_prefixes, standard_startfile_prefix_1,
4861 "BINUTILS", 0, 0, NULL_PTR);
4862 add_prefix (&startfile_prefixes, standard_startfile_prefix_2,
4863 "BINUTILS", 0, 0, NULL_PTR);
4864 #if 0 /* Can cause surprises, and one can use -B./ instead. */
4865 add_prefix (&startfile_prefixes, "./", NULL_PTR, 0, 1, NULL_PTR);
4870 if (*standard_startfile_prefix != DIR_SEPARATOR && gcc_exec_prefix)
4871 add_prefix (&startfile_prefixes,
4872 concat (gcc_exec_prefix, machine_suffix,
4873 standard_startfile_prefix, NULL_PTR),
4874 "BINUTILS", 0, 0, NULL_PTR);
4877 /* If we have a GCC_EXEC_PREFIX envvar, modify it for cpp's sake. */
4878 if (gcc_exec_prefix)
4880 char * temp = (char *) xmalloc (strlen (gcc_exec_prefix)
4881 + strlen (spec_version)
4882 + strlen (spec_machine) + 3);
4883 strcpy (temp, gcc_exec_prefix);
4884 strcat (temp, spec_machine);
4885 strcat (temp, dir_separator_str);
4886 strcat (temp, spec_version);
4887 strcat (temp, dir_separator_str);
4888 gcc_exec_prefix = temp;
4891 /* Now we have the specs.
4892 Set the `valid' bits for switches that match anything in any spec. */
4894 validate_all_switches ();
4896 /* Now that we have the switches and the specs, set
4897 the subdirectory based on the options. */
4898 set_multilib_dir ();
4900 /* Warn about any switches that no pass was interested in. */
4902 for (i = 0; i < n_switches; i++)
4903 if (! switches[i].valid)
4904 error ("unrecognized option `-%s'", switches[i].part1);
4906 /* Obey some of the options. */
4908 if (print_search_dirs)
4910 printf ("install: %s%s\n", standard_exec_prefix, machine_suffix);
4911 printf ("programs: %s\n", build_search_list (&exec_prefixes, "", 0));
4912 printf ("libraries: %s\n", build_search_list (&startfile_prefixes, "", 0));
4916 if (print_file_name)
4918 printf ("%s\n", find_file (print_file_name));
4922 if (print_prog_name)
4924 char *newname = find_a_file (&exec_prefixes, print_prog_name, X_OK);
4925 printf ("%s\n", (newname ? newname : print_prog_name));
4929 if (print_multi_lib)
4931 print_multilib_info ();
4935 if (print_multi_directory)
4937 if (multilib_dir == NULL)
4940 printf ("%s\n", multilib_dir);
4944 if (print_help_list)
4950 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
4951 printf ("Please see the file BUGS (included with the sources) first.\n");
4956 /* We do not exit here. Instead we have created a fake input file
4957 called 'help-dummy' which needs to be compiled, and we pass this
4958 on the the various sub-processes, along with the --help switch. */
4965 /* compiler_version is truncated at the first space when initialized
4966 from version string, so truncate version_string at the first space
4967 before comparing. */
4968 for (n = 0; version_string[n]; n++)
4969 if (version_string[n] == ' ')
4972 if (! strncmp (version_string, compiler_version, n)
4973 && compiler_version[n] == 0)
4974 fprintf (stderr, "gcc version %s\n", version_string);
4976 fprintf (stderr, "gcc driver version %s executing gcc version %s\n",
4977 version_string, compiler_version);
4983 if (n_infiles == added_libraries)
4984 fatal ("No input files");
4986 /* Make a place to record the compiler output file names
4987 that correspond to the input files. */
4990 #ifdef LANG_SPECIFIC_DRIVER
4991 i += lang_specific_extra_outfiles;
4993 outfiles = (char **) xmalloc (i * sizeof (char *));
4994 bzero ((char *) outfiles, i * sizeof (char *));
4996 /* Record which files were specified explicitly as link input. */
4998 explicit_link_files = xmalloc (n_infiles);
4999 bzero (explicit_link_files, n_infiles);
5001 for (i = 0; i < n_infiles; i++)
5003 register struct compiler *cp = 0;
5004 int this_file_error = 0;
5006 /* Tell do_spec what to substitute for %i. */
5008 input_filename = infiles[i].name;
5009 input_filename_length = strlen (input_filename);
5010 input_file_number = i;
5012 /* Use the same thing in %o, unless cp->spec says otherwise. */
5014 outfiles[i] = input_filename;
5016 /* Figure out which compiler from the file's suffix. */
5018 cp = lookup_compiler (infiles[i].name, input_filename_length,
5019 infiles[i].language);
5023 /* Ok, we found an applicable compiler. Run its spec. */
5024 /* First say how much of input_filename to substitute for %b */
5028 if (cp->spec[0][0] == '#')
5029 error ("%s: %s compiler not installed on this system",
5030 input_filename, &cp->spec[0][1]);
5032 input_basename = input_filename;
5033 for (p = input_filename; *p; p++)
5034 if (*p == '/' || *p == DIR_SEPARATOR)
5035 input_basename = p + 1;
5037 /* Find a suffix starting with the last period,
5038 and set basename_length to exclude that suffix. */
5039 basename_length = strlen (input_basename);
5040 p = input_basename + basename_length;
5041 while (p != input_basename && *p != '.') --p;
5042 if (*p == '.' && p != input_basename)
5044 basename_length = p - input_basename;
5045 input_suffix = p + 1;
5051 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5053 len += strlen (cp->spec[j]);
5055 p = (char *) xmalloc (len + 1);
5058 for (j = 0; j < sizeof cp->spec / sizeof cp->spec[0]; j++)
5061 strcpy (p + len, cp->spec[j]);
5062 len += strlen (cp->spec[j]);
5065 value = do_spec (p);
5068 this_file_error = 1;
5071 /* If this file's name does not contain a recognized suffix,
5072 record it as explicit linker input. */
5075 explicit_link_files[i] = 1;
5077 /* Clear the delete-on-failure queue, deleting the files in it
5078 if this compilation failed. */
5080 if (this_file_error)
5082 delete_failure_queue ();
5085 /* If this compilation succeeded, don't delete those files later. */
5086 clear_failure_queue ();
5089 #ifdef LANG_SPECIFIC_DRIVER
5090 if (error_count == 0)
5092 /* Make sure INPUT_FILE_NUMBER points to first available open
5094 input_file_number = n_infiles;
5095 if (lang_specific_pre_link ())
5100 /* Run ld to link all the compiler output files. */
5102 if (error_count == 0)
5104 int tmp = execution_count;
5106 /* We'll use ld if we can't find collect2. */
5107 if (! strcmp (linker_name_spec, "collect2"))
5109 char *s = find_a_file (&exec_prefixes, "collect2", X_OK);
5111 linker_name_spec = "ld";
5113 /* Rebuild the COMPILER_PATH and LIBRARY_PATH environment variables
5115 putenv_from_prefixes (&exec_prefixes, "COMPILER_PATH=");
5116 putenv_from_prefixes (&startfile_prefixes, "LIBRARY_PATH=");
5118 value = do_spec (link_command_spec);
5121 linker_was_run = (tmp != execution_count);
5124 /* Warn if a -B option was specified but the prefix was never used. */
5125 unused_prefix_warnings (&exec_prefixes);
5126 unused_prefix_warnings (&startfile_prefixes);
5128 /* If options said don't run linker,
5129 complain about input files to be given to the linker. */
5131 if (! linker_was_run && error_count == 0)
5132 for (i = 0; i < n_infiles; i++)
5133 if (explicit_link_files[i])
5134 error ("%s: linker input file unused since linking not done",
5137 /* Delete some or all of the temporary files we made. */
5140 delete_failure_queue ();
5141 delete_temp_files ();
5143 if (print_help_list)
5145 printf ("\nReport bugs to egcs-bugs@cygnus.com.\n");
5146 printf ("Please see the file BUGS (included with the sources) first.\n");
5149 exit (error_count > 0 ? (signal_count ? 2 : 1) : 0);
5154 /* Find the proper compilation spec for the file name NAME,
5155 whose length is LENGTH. LANGUAGE is the specified language,
5156 or 0 if this file is to be passed to the linker. */
5158 static struct compiler *
5159 lookup_compiler (name, length, language)
5164 struct compiler *cp;
5166 /* If this was specified by the user to be a linker input, indicate that. */
5167 if (language != 0 && language[0] == '*')
5170 /* Otherwise, look for the language, if one is spec'd. */
5173 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5174 if (cp->suffix[0] == '@' && !strcmp (cp->suffix + 1, language))
5177 error ("language %s not recognized", language);
5181 /* Look for a suffix. */
5182 for (cp = compilers + n_compilers - 1; cp >= compilers; cp--)
5184 if (/* The suffix `-' matches only the file name `-'. */
5185 (!strcmp (cp->suffix, "-") && !strcmp (name, "-"))
5186 || (strlen (cp->suffix) < length
5187 /* See if the suffix matches the end of NAME. */
5189 && ((!strcmp (cp->suffix,
5190 name + length - strlen (cp->suffix))
5191 || !strpbrk (cp->suffix, "ABCDEFGHIJKLMNOPQRSTUVWXYZ"))
5192 && !strcasecmp (cp->suffix,
5193 name + length - strlen (cp->suffix)))
5195 && !strcmp (cp->suffix,
5196 name + length - strlen (cp->suffix))
5200 if (cp->spec[0][0] == '@')
5202 struct compiler *new;
5204 /* An alias entry maps a suffix to a language.
5205 Search for the language; pass 0 for NAME and LENGTH
5206 to avoid infinite recursion if language not found.
5207 Construct the new compiler spec. */
5208 language = cp->spec[0] + 1;
5209 new = (struct compiler *) xmalloc (sizeof (struct compiler));
5210 new->suffix = cp->suffix;
5211 bcopy ((char *) lookup_compiler (NULL_PTR, 0, language)->spec,
5212 (char *) new->spec, sizeof new->spec);
5216 /* A non-alias entry: return it. */
5228 register char *value = (char *) malloc (size);
5230 fatal ("virtual memory exhausted");
5235 xrealloc (ptr, size)
5239 register char *value = (char *) realloc (ptr, size);
5241 fatal ("virtual memory exhausted");
5245 /* This function is based on the one in libiberty. */
5248 concat VPROTO((char *first, ...))
5250 register int length;
5251 register char *newstr;
5259 /* First compute the size of the result and get sufficient memory. */
5261 VA_START (args, first);
5263 first = va_arg (args, char *);
5271 length += strlen (arg);
5272 arg = va_arg (args, char *);
5275 newstr = (char *) xmalloc (length + 1);
5278 /* Now copy the individual pieces to the result string. */
5280 VA_START (args, first);
5282 first = va_arg (args, char *);
5291 arg = va_arg (args, char *);
5300 save_string (s, len)
5304 register char *result = xmalloc (len + 1);
5306 bcopy (s, result, len);
5312 pfatal_with_name (name)
5315 fatal ("%s: %s", name, my_strerror (errno));
5319 perror_with_name (name)
5322 error ("%s: %s", name, my_strerror (errno));
5326 pfatal_pexecute (errmsg_fmt, errmsg_arg)
5330 int save_errno = errno;
5334 /* Space for trailing '\0' is in %s. */
5335 char *msg = xmalloc (strlen (errmsg_fmt) + strlen (errmsg_arg));
5336 sprintf (msg, errmsg_fmt, errmsg_arg);
5340 fatal ("%s: %s", errmsg_fmt, my_strerror (save_errno));
5343 /* More 'friendly' abort that prints the line and file.
5344 config.h can #define abort fancy_abort if you like that sort of thing. */
5349 fatal ("Internal gcc abort.");
5352 /* Output an error message and exit */
5355 fatal VPROTO((char *format, ...))
5362 VA_START (ap, format);
5365 format = va_arg (ap, char *);
5368 fprintf (stderr, "%s: ", programname);
5369 vfprintf (stderr, format, ap);
5371 fprintf (stderr, "\n");
5372 delete_temp_files ();
5377 error VPROTO((char *format, ...))
5384 VA_START (ap, format);
5387 format = va_arg (ap, char *);
5390 fprintf (stderr, "%s: ", programname);
5391 vfprintf (stderr, format, ap);
5394 fprintf (stderr, "\n");
5398 validate_all_switches ()
5400 struct compiler *comp;
5403 struct spec_list *spec;
5405 for (comp = compilers; comp->spec[0]; comp++)
5408 for (i = 0; i < sizeof comp->spec / sizeof comp->spec[0] && comp->spec[i]; i++)
5412 if (c == '%' && *p == '{')
5413 /* We have a switch spec. */
5414 validate_switches (p + 1);
5418 /* look through the linked list of specs read from the specs file */
5419 for (spec = specs; spec ; spec = spec->next)
5421 p = *(spec->ptr_spec);
5423 if (c == '%' && *p == '{')
5424 /* We have a switch spec. */
5425 validate_switches (p + 1);
5428 p = link_command_spec;
5430 if (c == '%' && *p == '{')
5431 /* We have a switch spec. */
5432 validate_switches (p + 1);
5435 /* Look at the switch-name that comes after START
5436 and mark as valid all supplied switches that match it. */
5439 validate_switches (start)
5442 register char *p = start;
5457 while (*p != ':' && *p != '}') p++;
5461 else if (p[-1] == '*')
5463 /* Mark all matching switches as valid. */
5465 for (i = 0; i < n_switches; i++)
5466 if (!strncmp (switches[i].part1, filter, p - filter))
5467 switches[i].valid = 1;
5471 /* Mark an exact matching switch as valid. */
5472 for (i = 0; i < n_switches; i++)
5474 if (!strncmp (switches[i].part1, filter, p - filter)
5475 && switches[i].part1[p - filter] == 0)
5476 switches[i].valid = 1;
5481 /* Check whether a particular argument was used. The first time we
5482 canonicalize the switches to keep only the ones we care about. */
5496 static struct mswitchstr *mswitches;
5497 static int n_mswitches;
5502 struct mswitchstr *matches;
5506 /* Break multilib_matches into the component strings of string and replacement
5508 for (q = multilib_matches; *q != '\0'; q++)
5512 matches = (struct mswitchstr *) alloca ((sizeof (struct mswitchstr)) * cnt);
5514 q = multilib_matches;
5525 matches[i].len = q - matches[i].str;
5527 matches[i].replace = ++q;
5528 while (*q != ';' && *q != '\0')
5534 matches[i].rep_len = q - matches[i].replace;
5542 /* Now build a list of the replacement string for switches that we care
5543 about. Make sure we allocate at least one entry. This prevents
5544 xmalloc from calling fatal, and prevents us from re-executing this
5547 = (struct mswitchstr *) xmalloc ((sizeof (struct mswitchstr))
5548 * (n_switches ? n_switches : 1));
5549 for (i = 0; i < n_switches; i++)
5551 int xlen = strlen (switches[i].part1);
5552 for (j = 0; j < cnt; j++)
5553 if (xlen == matches[j].len && ! strcmp (switches[i].part1, matches[j].str))
5555 mswitches[n_mswitches].str = matches[j].replace;
5556 mswitches[n_mswitches].len = matches[j].rep_len;
5557 mswitches[n_mswitches].replace = (char *)0;
5558 mswitches[n_mswitches].rep_len = 0;
5565 for (i = 0; i < n_mswitches; i++)
5566 if (len == mswitches[i].len && ! strncmp (p, mswitches[i].str, len))
5573 default_arg (p, len)
5579 for (start = multilib_defaults; *start != '\0'; start = end+1)
5581 while (*start == ' ' || *start == '\t')
5587 for (end = start+1; *end != ' ' && *end != '\t' && *end != '\0'; end++)
5590 if ((end - start) == len && strncmp (p, start, len) == 0)
5600 /* Work out the subdirectory to use based on the
5601 options. The format of multilib_select is a list of elements.
5602 Each element is a subdirectory name followed by a list of options
5603 followed by a semicolon. gcc will consider each line in turn. If
5604 none of the options beginning with an exclamation point are
5605 present, and all of the other options are present, that
5606 subdirectory will be used. */
5611 char *p = multilib_select;
5613 char *this_path, *this_arg;
5619 /* Ignore newlines. */
5626 /* Get the initial path. */
5634 this_path_len = p - this_path;
5636 /* Check the arguments. */
5651 while (*p != ' ' && *p != ';')
5658 if (*this_arg != '!')
5666 /* If this is a default argument, we can just ignore it.
5667 This is true even if this_arg begins with '!'. Beginning
5668 with '!' does not mean that this argument is necessarily
5669 inappropriate for this library: it merely means that
5670 there is a more specific library which uses this
5671 argument. If this argument is a default, we need not
5672 consider that more specific library. */
5673 if (! default_arg (this_arg, p - this_arg))
5675 ok = used_arg (this_arg, p - this_arg);
5686 if (this_path_len != 1
5687 || this_path[0] != '.')
5689 multilib_dir = xmalloc (this_path_len + 1);
5690 strncpy (multilib_dir, this_path, this_path_len);
5691 multilib_dir[this_path_len] = '\0';
5700 /* Print out the multiple library subdirectory selection
5701 information. This prints out a series of lines. Each line looks
5702 like SUBDIRECTORY;@OPTION@OPTION, with as many options as is
5703 required. Only the desired options are printed out, the negative
5704 matches. The options are print without a leading dash. There are
5705 no spaces to make it easy to use the information in the shell.
5706 Each subdirectory is printed only once. This assumes the ordering
5707 generated by the genmultilib script. */
5710 print_multilib_info ()
5712 char *p = multilib_select;
5713 char *last_path = 0, *this_path;
5715 int last_path_len = 0;
5719 /* Ignore newlines. */
5726 /* Get the initial path. */
5735 /* If this is a duplicate, skip it. */
5736 skip = (last_path != 0 && p - this_path == last_path_len
5737 && ! strncmp (last_path, this_path, last_path_len));
5739 last_path = this_path;
5740 last_path_len = p - this_path;
5742 /* If this directory requires any default arguments, we can skip
5743 it. We will already have printed a directory identical to
5744 this one which does not require that default argument. */
5762 while (*q != ' ' && *q != ';')
5770 && default_arg (arg, q - arg))
5785 for (p1 = last_path; p1 < p; p1++)
5804 use_arg = *p != '!';
5809 while (*p != ' ' && *p != ';')
5824 /* If there are extra options, print them now */
5825 if (multilib_extra && *multilib_extra)
5827 int print_at = TRUE;
5830 for (q = multilib_extra; *q != '\0'; q++)